A senor sent out for rococo quality (10)

I believe the answer is:

ornateness

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

'rococo quality' is the definition.
'ornateness' can be an answer for 'quality' (ornateness is a kind of quality). I am not certain of the 'rococo' bit.

'a senor sent out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'a'+'senor'+'sent'='asenorsent'
'asenorsent' anagrammed gives 'ORNATENESS'.

'for' is the link.

Can you help me to learn more?

(Another definition for ornateness that I've seen is " baroque decoration".)

I've seen this clue in the Sydney Morning Herald.

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