Clue: Tough to crack
Tough to crack is a crossword puzzle clue that we have spotted 7 times. There are related clues (shown below).
Referring crossword puzzle answers
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Recent usage in crossword puzzles:
- WSJ Daily - Sept. 26, 2022
- Washington Post - Oct. 5, 2014
- Newsday - July 24, 2013
- Newsday - June 12, 2011
- Newsday - Dec. 24, 2010
- New York Times - Aug. 2, 2008
- Newsday - May 13, 2007