% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Other crossword clues for answer "XOXO"

XOXO
___, Gossip Girl
End of a love note
Mash note closing
Billet-doux closing
Letter closer
Love letters?
Mash note sign-off
Affectionate sign-off
Love letter letters
SWAK alternative
Hugs and kisses, in a note
Letters at the end of a love letter
Love letter closing, and in sequence, a hint to the ends of 18-, 28-, 48- and 64-Across
Signs of affection
Hugs-and-kisses symbols
Valentine letters
Amorous letters
Sentimental sign-off
Hugs and kisses, in letters
Way to express affection
Sweet sign-off
Letters in love letters
Cutesy sign-off
Fan letters?
Letter ender
Common sign-off
Short and sweet sign-off
Affectionate sign-off ... or a pattern hinting at the starts of the answers to the six starred clues
Hugs and kisses, briefly
Hugs and kisses
Gossip Girl sign-off
Letter signoff
Love letter closer, perhaps
Hugs and kisses, symbolically
Love you, bye!
Secret admirer's sign-off
Fond letter closing