- BULB
- Onion, for one
- Tulip planting
- It may be dim
- Object that symbolizes an idea
- Light source
- Thermometer part
- Socket insert
- Lamp unit
- Tulip-to-be
- Shiner
- Perennial source, often
- Implement with an "Edison screw"
- Something behind a shade
- Lamp necessity
- Future tulip
- Future lily
- Symbol of a bright idea
- Cluster of cloves
- Head of garlic
- Flower bed planting
- Flower starter, often
- Three-way, e.g.
- Fall planting
- Germ of a geranium
- Tulip's start
- Part of a thermometer
- How many crossword solvers does it take to screw in a light ___?
- Lamp accessory
- He's a dim ___
- Lamp insert
- Lily producer
- Annual groundbreaker
- GE product
- Filament container
- Onion or shallot
- Shallot, e.g.
- Daffodil-to-be
- Light in a socket
- Shallot, for one
- Onion or tulip
- Daffodil source
- Onion, for example
- Tulip, for instance
- It's illuminating
- Gardener's purchase
- Lily, for instance
- One end of a baster
- 30 Down, for one
- Lamp light
- Lily or onion
- Narcissus, for example
- Tulip or onion
- Eyedropper extremity
- Eyedropper part
- Lamp's light source
- Light-fixture insert
- Onion's origin
- Light in a lamp
- Narcissus, e.g.
- Filament housing
- Shutter speed setting
- Onion, e.g.
- Onion or garlic.
- Lamp.
- Tulip bud.
- Onion.
- Gardener's concern.
- Lily or tulip.
- Garden specialty.
- Tuber.
- Part of a plant.
- Source of light.
- Electron tube.
- See 23 Down.
- Hyacinth-to-be.
- Lamp item
- Tulip or light
- Underground bud
- Corm
- Lily part
- Tulip source
- Tulip ___
- Iris, for one
- Tulip's origin
- Flower part
- Lily's origin
- Daffodil or tulip
- Lily's beginning
- Onion or hyacinth
- Future flower
- It's often screwed up
- Tulip's base
- Iris's base
- Flower starter
- Bottom of a lily
- Thermometer's terminus
- Sylvania product
- Tulip or lily planting
- *Replaceable part of a lamp
- Hardware store or nursery purchase
- It may have 40, 60 or 75 watts
- Something screwed into a lamp
- Light source that needs occasional replacement
- It's used in a flash
- Chives feature
- It may be screwed up
- Onion or lily
- This goes off when inspiration strikes
- Less Than Jake "The Brightest ___ Has Burned Out"
- Garlic, for one
- 2-Down, for one
- It's usually screwed up
- Cartoonist's idea?
- Light finish?
- Tulip start
- Lamp lighter
- Mercury thermometer part
- It screws into a light fixture
- Lava lamp insert
- Future hyacinth or tulip
- Fixture insert
- Future tulip or onion
- An onion is one
- Chandelier insert
- Item rated in watts
- Light ___
- Burnout victim
- Good idea, symbolically
- Bright idea emoji
- Eyedropper end
- Future fritillary
- It'll light up a room
