Filed from 3 published puzzles

CARNY

Set to 3 different clues across 3 published puzzles, most often “Sideshow worker” — The New York Times, Sunday, 10 October 2010.

5 letters

Every clue on record, most used first

Sideshow workeronce
The New York Times — Sunday, 10 October 2010
Barkeronce
The New York Times — Sunday, 30 March 2003
Ferris wheel operatoronce
The New York Times — Sunday, 24 March 1996

Other answers to these clues

DOG3 letters
SEAL4 letters
YELPER6 letters