Excellent winner at Wimbledon (3)
I believe the answer is:
ace
'excellent' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for ace that I've seen before include "hotshot" , "fighter pilot" , "rare driving result?" , "Entertain" , "In golf, a hole in one" .)