Payments to copyright holder in Italy rose unexpectedly (9)
I believe the answer is:
royalties
'payments to copyright holder' is the definition.
(eg royalties for a songwriter)
'italy rose unexpectedly' is the wordplay.
'unexpectedly' indicates anagramming the letters.
'italy'+'rose'='italyrose'
'italyrose' is an anagram of 'ROYALTIES'.
'in' acts as a link.
(Other definitions for royalties that I've seen before include "Appropriate payments" , "Payments to composers" , "Writer's payments" .)