Filed from 7 published puzzles

WHATIF

Set to 6 different clues across 7 published puzzles, most often “Hypothetical” — The New York Times, Friday, 30 March 2001.

6 letters

Every clue on record, most used first

Hypothetical2 times
The New York Times — Friday, 30 March 2001
"Just suppose ?"once
The New York Times — Wednesday, 12 July 2006
Start of an inventor's thoughtonce
The New York Times — Thursday, 20 May 2004
"Supposing ..."once
The New York Times — Tuesday, 3 December 2002
"Suppose ..."once
The New York Times — Sunday, 16 December 2001
Theoreticalonce
The New York Times — Sunday, 11 November 2001

Other answers to these clues

ACADEMIC8 letters
ASSUME6 letters
DEEM4 letters
IFSAY5 letters
OPINE5 letters