Kournikova of tennis (4)
I believe the answer is:
anna
'kournikova of tennis' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for anna that I've seen before include "-- Wintour, editor" , "Miss Karenina" , "Book by Tolstoy" , "Girl - old Indian coin" , "Old Indian coin - girl's name" .)