Filed from 7 published puzzles

LOCK

Set to 7 different clues across 7 published puzzles, most often “Canal part” — The New York Times, Sunday, 29 May 2011.

4 letters

Every clue on record, most used first

Canal partonce
The New York Times — Sunday, 29 May 2011
Combination ___once
The New York Times — Monday, 19 January 2009
Sure winneronce
The New York Times — Friday, 24 October 2008
Canal sectiononce
The New York Times — Wednesday, 12 May 2004
Wrestling holdonce
The New York Times — Tuesday, 7 August 2001
It may be pickedonce
The New York Times — Saturday, 4 September 1999
Canal deviceonce
The New York Times — Saturday, 30 November 1996

Other answers to these clues

AMALGAM7 letters
HALFNELSON10 letters
NELSON6 letters
NIT3 letters
ORE3 letters
SCISSORS8 letters