Big name in hardware stores (3)

I believe the answer is:

ace

'big name in hardware stores' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for ace that I've seen before include "single > club > champion" , "Unreturnable serve" , "reason for point of no return" , "Dab hand" , "Possibly a diamond" .)

I've seen this clue in the Universal and The New York Times.

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