Seven times winner of the Wimbledon women's singles title, b. 1969 (4)

I believe the answer is:

graf

(Other definitions for graf that I've seen before include "German tennis player, b. 1969" , "Steffi --, tennis player" , "German count - German tennis player" , "Noted tennis player" , "Steffi --, tennis champion" .)

I've seen this clue in The Guardian.

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