Filed from 3 published puzzles

DOTAGE

Set to 3 different clues across 3 published puzzles, most often “Faltering condition” — The New York Times, Friday, 4 February 2005.

6 letters

Every clue on record, most used first

Faltering conditiononce
The New York Times — Friday, 4 February 2005
Declining stateonce
The New York Times — Saturday, 18 August 2001
Senilityonce
The New York Times — Friday, 13 January 1995