- HARD
- No picnic
- Unyielding
- Like a Friday crossword
- Posing a challenge
- Ready to get down, in a way
- Nearly unsolvable
- Stony
- Demanding
- Like most themeless puzzles
- Challenging
- Like MIT Mystery Hunt puzzles
- 10 on the Mohs scale
- Obdurate
- Not like pie?
- High on the Mohs scale
- Arduous
- Tough
- High up on the Mohs scale
- Sort of ware
- Fully cured, say
- Callous
- One way to come down
- Needing some doing to crack
- Like nails?
- No walk in the park
- Bad, like luck
- Fast companion
- Word before labor or tack
- Like a diamond
- Strongly alcoholic
- Like a rock
- Like whiskey, as opposed to wine
- Like some hats or knocks
- Mind-boggling
- Partner of fast
- Difficult
- Firmly formed
- Like some cider
- Not a walk in the park
- Word with copy or candy
- Firm
- Definitely not child's play
- No piece of cake
- Very challenging
- Tough to crack
- Word before candy or copy
- Tough to solve
- ___ Knocks (HBO reality football show)
- _ Nosed: tough
- Boiled descriptive
- Adamantine
- Rough
- Mohs scale adjective
- Undeniable, as facts
- A __ Day's Night
- Word that can precede the first word of the six longest puzzle answers
- Forcefully
- Unlike a picnic?
- Like some facts
- Like some copies and courts
- Like some facts and stuff
- Stern
- Tough to learn
- Word with cash or candy
- Like jawbreakers
- A __ Day's Night: Beatles song
- For experts, as a game
- #6
- Like some candy
- Intently
- Thorny
- Impenetrable
- Rocky
- Troublesome
- Rock-like
- Fast partner
- Tough to figure out
- Challenging to figure out
- Granitelike
- Obstinate
- With 1-Across, mule
- With 57-Across, a nautical command
- Exacting.
- A ___ Day's Night
- Like corundum
- Physically fit for exertion.
- Spikenard.
- Adamant.
- Intense.
- Knotty.
- Steely.
- Vermont poet, Walter ___.
- Compact and solid.
- Difficult to deal with.
- Kind of sauce.
- Severe.
- Unfeeling.
- Unsentimental.
- Rigorous.
- Like anthracite.
- Solid and compact.
- ___ sauce.
- Powerful.
- Trying.
- With vigor.
- Calloused.
- Compact.
- Uphill.
- Without pity
- Toothbrush rating
- ___ as a rock
- Word with tack or line
- ___ as nails
- Kind of sauce or luck
- Times or tack
- Far from flabby
- Kind of cash or times
- Like some puzzles
- A ___ Day's Night, Beatles song
- Darlene of tennis fame
- ___ Ridden (1958 Epsom winner)
- Beatles' "A ___ Day's Night"
- Merciless
- Puzzling
- Rigid
- Unrelenting
- ___ Candy, T. Williams book
- ___ Copy, TV program
- Somewhat high on the Mohs' scale
- Fermented
- Dickens's "___ Times"
- Kind of rock or candy
- Subjected to induration
- Like Parmesan and pecorino
- Like #4 pencils
- Herculean
- Like Hannah's heart, in song
- Verifiable, as facts
- Not liquidy
- Steellike
- ___ as a diamond
- Fatiguing
- You might give this to someone you don't like
- Not squishy
- With 60-Down, gotten by great effort
- Like a rock and many a roll
- Like walnut shells
- Like a Saturday crossword
- Word with copy or currency
- Like some seltzers
- What this puzzle is.
- Tricky
- Word with candy or copy
- Like steel
- Eddie Vedder "___ Sun"
- Kiss "(You Make Me) Rock ___"
- The __ Rock Cafe is planning a new emphasis on live music
- Like concrete . . . or like either "C" in "concrete"
- Like cider with alcoholic content
- Like diamonds
- Like diamonds, but not talc
- *Two fours at the craps table
- Like some candy or crosswords
- Like this crossword, to some
- Not a breeze
- Not a no-brainer
- Type of cider
- Not quickly solved
- Copy type
- Word with labor or candy
- Like some heads
- Type of candy or cider
- Like some crosswords
- Like a tough nut to crack
- Causing head-scratching
- Like boozy cider
- Like most clues that end with question marks
- Taco shell option
- Like a coconut's shell
- Like spiked lemonade
- Like the puzzle?
- ___ labor
- Lead-in to hat or headed
- Like this crossword?
- Construction hat construction
- Difficult to solve
- Kind of coal
- Word with boil or line
- Hardly a no-brainer
- How you may find this puzzle
- Like some ciders
- Like dried cement
- Word before cash or copy
- Far from easy
- Like a chestnut shell
- Far from a walk in the park
- Unlike a gut course
- Flinty
- Very tricky
- Like a C in calculus?
- Like lemonade unsuitable for kids
- It's often played in Congress
- Opposite of 60-Across, and, with 10-Across, close examination