Filed from 4 published puzzles

GLITCH

Set to 4 different clues across 4 published puzzles, most often “Snag” — The New York Times, Sunday, 8 May 2011.

6 letters

Every clue on record, most used first

Snagonce
The New York Times — Sunday, 8 May 2011
Program problemonce
The New York Times — Sunday, 9 January 2011
Bugonce
The New York Times — Friday, 12 March 2010
Computer snagonce
The New York Times — Tuesday, 7 February 2006

Other answers to these clues

ANNOY5 letters
BOTHER6 letters
ERROR5 letters
FLU3 letters
GRAB4 letters
HARASS6 letters
HASSLE6 letters
INSECT6 letters
IRK3 letters
IRRITATE8 letters
NAB3 letters
NEEDLE6 letters