Filed from 20 published puzzles

ASTUTE

Set to 14 different clues across 20 published puzzles, most often “Sharp as a tack” — The New York Times, Tuesday, 26 July 2011.

6 letters

Every clue on record, most used first

  • Sharp as a tack3 times

    The New York Times — Tuesday, 26 July 2011

  • Shrewd3 times

    The New York Times — Friday, 4 July 2008

  • Sharp2 times

    The New York Times — Saturday, 16 May 2009

  • Quick2 times

    The New York Times — Saturday, 1 May 1999

  • Discerningonce

    The New York Times — Tuesday, 22 July 2008

  • Not dullonce

    The New York Times — Sunday, 5 March 2006

  • Mentally sharponce

    The New York Times — Monday, 28 November 2005

  • Not easily misledonce

    The New York Times — Saturday, 24 April 2004

  • On the ballonce

    The New York Times — Sunday, 28 March 2004

  • Keenonce

    The New York Times — Sunday, 2 February 2003

  • Not born yesterdayonce

    The New York Times — Wednesday, 8 March 2000

  • Penetratingonce

    The New York Times — Sunday, 27 February 2000

Other answers to these clues