Numbskull

ASS3 lettersrecorded 6 times for this clue

The New York Times, Thursday, 6 May 2010, set by Dan Naddor.

Also in 5 further puzzles in The New York Times, 1997–2009.

DODO4 lettersrecorded 4 times for this clue

The New York Times, Sunday, 13 April 2008, set by Cathy Allis Millhauser — HOW INSULTING!.

Also in 3 further puzzles in The New York Times, 1996–2003.

BOZO4 lettersrecorded 3 times for this clue

The New York Times, Saturday, 18 June 2011, set by Joon Pahk.

Also in 2 further puzzles in The New York Times, 1997–2000.

BOOB4 lettersrecorded 3 times for this clue

The New York Times, Monday, 28 March 2011, set by Robyn Weintraub.

Also in 2 further puzzles in The New York Times, 2002–2007.

IDIOT5 lettersrecorded 2 times for this clue

The New York Times, Thursday, 6 May 2010, set by Dan Naddor.

Also in 1 further puzzle in The New York Times, 2000.

OAF3 lettersrecorded once for this clue

The New York Times, Sunday, 4 June 1995, set by Bryant White — One Up.

DOLT4 lettersrecorded once for this clue

The New York Times, Tuesday, 9 January 1996, set by Bernice Gordon.

DOPE4 lettersrecorded once for this clue

The New York Times, Tuesday, 26 January 1999, set by Brendan Emmett Quigley.

STOOGE6 lettersrecorded once for this clue

The New York Times, Sunday, 28 October 2001, set by Michael Ashley — PUZZLER'S PC LEXICON.

MORON5 lettersrecorded once for this clue

The New York Times, Monday, 25 September 2006, set by Lynn Lempel.

DUNCE5 lettersrecorded once for this clue

The New York Times, Monday, 3 March 1997, set by Stephanie Spadaccini.

AIRHEAD7 lettersrecorded once for this clue

The New York Times, Saturday, 18 February 1995, set by Stephanie Spadaccini — New York Times Sat, Feb 18, 1995.