Very costly mistake (see letters 4 to 6)

On this page you may find the Very costly mistake (see letters 4 to 6) crossword puzzle clue answers and solutions. This crossword clue was last seen on October 16 2020 in the popular Universal Crossword Puzzle. We have found 1 possible solution matching the query “Very costly mistake (see letters 4 to 6)” and the answer is shown below.

The possible answer is:

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