Filed from 4 published puzzles

BIMBO

Set to 4 different clues across 4 published puzzles, most often “Airhead” — The New York Times, Sunday, 23 May 2010.

5 letters

Every clue on record, most used first

Airheadonce
The New York Times — Sunday, 23 May 2010
Empty-headed sortonce
The New York Times — Wednesday, 24 September 2008
Hardly an intellectualonce
The New York Times — Wednesday, 30 September 1998
Hardly the brainy typeonce
The New York Times — Monday, 14 April 1997

Other answers to these clues

DITZ4 letters
DOLT4 letters
DUMBBELL8 letters