New coats of operatic character (5)

I believe the answer is:

tosca

I'm a little stuck... Click here to teach me more about this clue!

'operatic character' is the definition.
The definition suggests a singular noun which matches the answer.

'new coats' is the wordplay.
'new' indicates anagramming the letters.
'coats' with letters rearranged gives 'TOSCA'.

'of' is the link.

Can you help me to learn more?

(Other definitions for tosca that I've seen before include "celebrated singer" , "Leaping opera heroine" , "role for diva" , "title role" , "Puccini heroine" .)

I've seen this clue in the Evening Standard.

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