Wimbledon champion of 1975 (4)
I believe the answer is:
ashe
'wimbledon champion of 1975' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ashe that I've seen before include "tennis champ" , "US court star" , "US rallying champion" , "Arthur ___, American tennis player 1943-1993" , "Ex-Wimbledon champ" .)