MANEGE

Set to 2 different clues across 2 published puzzles, most often “Horse-training school” — The New York Times, Thursday, 10 April 2008.

6 letters

Every clue on record, most used first

Horse-training schoolonce
The New York Times — Thursday, 10 April 2008
Art of training and riding horsesonce
The New York Times — Sunday, 11 November 2001