DOJOS

Set to 4 different clues across 7 published puzzles, most often “Karate schools” — The New York Times, Monday, 18 April 2011.

5 letters

Every clue on record, most used first

Karate schools4 times
The New York Times — Monday, 18 April 2011
Schools where students wear whiteonce
The New York Times — Saturday, 26 December 2009
Places to develop one's chops?once
The New York Times — Friday, 16 May 2008
Martial arts schoolsonce
The New York Times — Monday, 28 April 1997