Filed from 6 published puzzles

ILLEGAL

Set to 6 different clues across 6 published puzzles, most often “Law-breaking” — The New York Times, Monday, 22 February 2010.

7 letters

Every clue on record, most used first

Law-breakingonce
The New York Times — Monday, 22 February 2010
Like icingonce
The New York Times — Saturday, 13 December 2008
Prohibitedonce
The New York Times — Monday, 20 December 2004
Criminalonce
The New York Times — Wednesday, 12 December 2001
Like some aliensonce
The New York Times — Saturday, 3 April 1999
Not according to Hoyleonce
The New York Times — Sunday, 16 August 1998

Other answers to these clues

BANNED6 letters
FORBADE7 letters
OFFENDER8 letters
TABOO5 letters
THUG4 letters
VERBOTEN8 letters