Prison time breaks Wimbledon champion (8)

I believe the answer is:

alcatraz

I'm a little stuck... Click here to teach me more about this clue!

'prison' is the definition.
(former US prison)

I don't understand the remainder of the clue.

(Other definitions for alcatraz that I've seen before include "Notorious US prison" , "Old Calif. offshore prison" , "Federal prison in California, 1934-63" , "US island, formerly a famous prison" , "US island of a former maximum-security prison" .)

I've seen this clue in The Independent.

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.