Filed from 4 published puzzles

IMDONE

Set to 4 different clues across 4 published puzzles, most often "All finished!" — The New York Times, Friday, 25 March 2011.

6 letters

Every clue on record, most used first

"All finished!"once
The New York Times — Friday, 25 March 2011
Confirmation to a busboyonce
The New York Times — Saturday, 14 March 2009
"No more for me"once
The New York Times — Saturday, 6 September 2008
"Finished!"once
The New York Times — Sunday, 4 July 2004

Other answers to these clues

ALLDONE7 letters
ALLOVER7 letters
ATANEND7 letters
CAMEIN6 letters
ENDED5 letters
ENDEDUP7 letters
IMSET5 letters
INTHECAN8 letters
ITSDONE7 letters
OVER4 letters
PAST4 letters