"Norma" composer (7)
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I believe the answer is:
bellini
'norma composer' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bellini that I've seen before include "Norma, I Puritani composer" , "Musical artist" , "member of painting family" , "Cocktail; painter; opera composer" , "Champagne and peach cocktail" .)