Filed from 3 published puzzles

DIGGER

Set to 3 different clues across 3 published puzzles, most often “Shovel user” — The New York Times, Monday, 5 June 2006.

6 letters

Every clue on record, most used first

Shovel useronce
The New York Times — Monday, 5 June 2006
Groundhog, notablyonce
The New York Times — Sunday, 6 April 1997
Mineronce
The New York Times — Friday, 30 August 1996