New York stadium eponym (4)
I believe the answer is:
ashe
'new york stadium eponym' 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 rallying champion" , "Sporting champion once" , "Former tennis star" , "Ex-Wimbledon champ" .)