2015 French Open winner Wawrinka (4)

I believe the answer is:

stan

(Other definitions for stan that I've seen before include "- Getz, jazz musician" , "Laurel and Hardy, . . . . and Ollie" , "Eminem hit; man's name" , "One of the comic duo" , "Ollie's partner" .)

I've seen this clue in The Wall Street Journal.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.