Roman version of a Bellini opera? (5)
I believe the answer is:
norma
'a bellini opera?' is the definition.
(I've seen this in another clue)
'roman version' is the wordplay.
'version' indicates an anagram.
'roman' anagrammed gives 'NORMA'.
'of' acts as a link.
(Other definitions for norma that I've seen before include "Operatic work" , "small group of stars" , "Manor (anag.)" , "Marilyn Monroe's real first name" , "Operatic heroine" .)