The clue "Prove useful" last appeared in the USA Today crossword on March 27, 2017. The correct answer for this puzzle is "COMEINHANDY", a 11-letter word.
Solution COMEINHANDY is our most searched for solution by our visitors. Solution COMEINHANDY is 11 letters long. We have 1 further solutions of the same word length.
There are 4 solutions. The longest is BEOFSERVICE with 11 letters, and the shortest is AVAI with 4 letters.
Indeed, the puzzle clue "PROVE USEFUL" has seen a surge in lookups recently (last checked: 06 Jun 2026). Apparently it´s giving players some headaches!
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Solutions are between 4 and 11 letters long.