Spoil charlady naughtily, rendering love songs maybe (13)

I believe the answer is:

rhapsodically

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'rendering love songs maybe' is the definition.
I can't tell whether this definition defines the answer.

'spoil charlady naughtily' is the wordplay.
'naughtily' indicates an anagram.
'spoil'+'charlady'='spoilcharlady'
'spoilcharlady' anagrammed gives 'RHAPSODICALLY'.

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I've seen this clue in The Telegraph.

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