ANECDOTAL

Set to 3 different clues across 3 published puzzles, most often “Not fully reliable, as evidence” — The New York Times, Saturday, 16 October 2010.

9 letters

Every clue on record, most used first

Not fully reliable, as evidenceonce
The New York Times — Saturday, 16 October 2010
Hardly conclusiveonce
The New York Times — Friday, 11 March 2005
Nonscientific, as evidenceonce
The New York Times — Monday, 24 July 1995