ONEK

Set to 3 different clues across 3 published puzzles, most often “Short race, briefly” — The New York Times, Thursday, 9 December 2010.

4 letters

Every clue on record, most used first

Short race, brieflyonce
The New York Times — Thursday, 9 December 2010
Short race, for shortonce
The New York Times — Thursday, 5 June 2008
Length of a kids' fun run, brieflyonce
The New York Times — Friday, 22 June 2007