Wastes one's efforts and a hint to this puzzle's theme

On this page you may find the Wastes one's efforts and a hint to this puzzle's theme crossword puzzle clue answers and solutions. This crossword clue was last seen on November 7 2022 in the popular Wall Street Journal Crossword Puzzle. We have found 1 possible solution matching the query “Wastes one's efforts and a hint to this puzzle's theme” and the answer is shown below.

The possible answer is:

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