Bad actors have no right to be in opera! (5)
I believe the answer is:
tosca
'opera' is the definition.
(Giacomo Puccini opera)
'bad actors have no right' is the wordplay.
'bad' indicates an anagram.
'have no' indicates named letters should be taken away.
'right' becomes 'r' (common abbreviation).
'actors' with 'r' taken away is 'actos'.
'actos' with letters rearranged gives 'TOSCA'.
'to be in' is the link.
(Other definitions for tosca that I've seen before include "role for diva" , "Luigi -, Italian playwright" , "One of Puccini's 19" , "Coats off for Puccini's opera" , "celebrated singer" .)