A female Wimbledon champion (4)
I believe the answer is:
ashe
'wimbledon champion' is the definition.
(tennis player Arthur Ashe)
'a female' is the wordplay.
'female' becomes 'she' ('she' refers to a woman).
'a'+'she'='ASHE'
(Other definitions for ashe that I've seen before include "tennis champ" , "Arthur, first black Wimbledon men's singles champion, 1975" , "He was good enough to win Wimbledon" , "US court star" , "US tennis player Arthur, 1975 Wimbledon champion" .)