Crossword Genius

Expert (3)

Ross

'expert' is the definition.
(ace can informally mean very good)

This is the entire clue.

(Other definitions for ace that I've seen before include "Very good; playing card" , "reason for point of no return" , "One; A1" , "Top card or winning tennis serve" , "Crack" .)

I've seen this clue in The Star Tribune, the Evening Standard, the LA Times, The New York Times, The Sun, the Penny Press, the Universal, The Wall Street Journal, The Mirror, the USA Today, The Times, The Telegraph and the King Feature Syndicate.
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