Filed from 2 published puzzles

DONTHAVEACOWMAN

Set to 2 different clues across 2 published puzzles, most often "Relax!" — The New York Times, Wednesday, 21 May 1997.

15 letters

Every clue on record, most used first

"Relax!"once
The New York Times — Wednesday, 21 May 1997
Bart Simpson catch phraseonce
The New York Times — Monday, 14 October 1996

Other answers to these clues

ATEASE6 letters
BREATHEEASIER13 letters
CHILL5 letters
CHILLOUT8 letters
DONTWORRY9 letters
EASEUP6 letters
EZDOESIT8 letters
KEEPYOURSHIRTON15 letters
LAZE4 letters
LETONESHAIRDOWN15 letters
LETUP5 letters
LOLL4 letters