Filed from 4 published puzzles

IDEEFIXE

Set to 3 different clues across 4 published puzzles, most often “Obsession” — The New York Times, Friday, 14 January 2000.

8 letters

Every clue on record, most used first

Obsession2 times
The New York Times — Friday, 14 January 2000
Thought one can't shakeonce
The New York Times — Saturday, 26 March 2011
Possible psychotic symptomonce
The New York Times — Friday, 6 February 2004

Other answers to these clues

FETISH6 letters
FIXATION8 letters
MANIA5 letters