Music to peer at, possibly (8)

I believe the answer is:

operetta

'music' is the definition.
(operetta is a kind of music)

'to peer at possibly' is the wordplay.
'possibly' indicates an anagram.
'to'+'peer'+'at'='topeerat'
'topeerat' with letters rearranged gives 'OPERETTA'.

(Other definitions for operetta that I've seen before include "Light entertainment" , "Light classical musical comedy-drama" , "Showboat or The Gondoliers, say" , "Eg, Orpheus in the Underworld" , "Light musical stage work" .)

I've seen this clue in the Evening Standard.

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