Filed from 4 published puzzles

LADER

Set to 3 different clues across 4 published puzzles, most often “Dockworker” — The New York Times, Friday, 8 July 2011.

5 letters

Every clue on record, most used first

Dockworker2 times
The New York Times — Friday, 8 July 2011
One putting on cargoonce
The New York Times — Sunday, 11 April 2004
Longshoremanonce
The New York Times — Friday, 22 January 1999

Other answers to these clues

STEVEDORE9 letters