Throw fruit at singer (5,5)
I believe the answer is:
chuck berry
'singer' is the definition.
(I know that Chuck Berry is a rock star)
'throw fruit' is the wordplay.
'throw' becomes 'chuck' (chucking is a kind of throwing).
'fruit' becomes 'berry' (berry is a kind of fruit).
'chuck'+'berry'='CHUCK BERRY'
'at' acts as a link.
(Other definitions for chuck berry that I've seen before include "Rock 'n' roller's" , "Singer" .)