Filed from 2 published puzzles

CASEIN

Set to 2 different clues across 2 published puzzles, most often “Milk protein” — The New York Times, Saturday, 19 October 1996.

6 letters

Every clue on record, most used first

  • Milk proteinonce

    The New York Times — Saturday, 19 October 1996

  • Milk solidonce

    The New York Times — Saturday, 21 September 1996