Filed from 4 published puzzles

ENLISTED

Set to 3 different clues across 4 published puzzles, most often “Volunteered” — The New York Times, Saturday, 1 April 2006.

8 letters

Every clue on record, most used first

Volunteered2 times
The New York Times — Saturday, 1 April 2006
Like privatesonce
The New York Times — Friday, 22 April 2011
Joined the ranksonce
The New York Times — Thursday, 6 June 2002