Filed from 4 published puzzles

SLUDGE

Set to 3 different clues across 4 published puzzles, most often “Gunk” — The New York Times, Thursday, 25 March 2010.

6 letters

Every clue on record, most used first

  • Gunk2 times

    The New York Times — Thursday, 25 March 2010

  • STP targetonce

    The New York Times — Friday, 25 September 1998

  • Drain blockeronce

    The New York Times — Sunday, 16 August 1998