Crossword Genius

Service; card (3)

Ross

I believe the answer is:

ace

This clue is a double definition.

'service' is the first definition.
(I know that ace is a type of service)

'card' is the second definition.
(ace is a type of playing card)

(Other definitions for ace that I've seen before include "Hole in one; very good" , "'wicked'!" , "unit > of highest quality" , "Best type of tennis serve" , "Test pilot'" .)

I've seen this clue in The Times.
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