Expert on 15-Down, maybe

This crossword clue is for the definition: Expert on 15-Down, maybe.
it’s A 24 letters crossword puzzle definition.
Next time, when searching for online help with your puzzle, try using the search term “Expert on 15-Down, maybe crossword” or “Expert on 15-Down, maybe crossword clue”. The possible answerss for Expert on 15-Down, maybe are listed below.

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Possible Answers: OPERAFAN.

Last seen on: Wall Street Journal Crossword – November 21 2022 – Doc Work