Nonces dispersed after tea dances (9)

I believe the answer is:

chaconnes

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'dances' is the definition.
Both the definition and answer are plural nouns.
Perhaps they are linked in a way I don't understand?

'nonces dispersed after tea' is the wordplay.
'dispersed' indicates an anagram.
'after' is a charade indicator (letters next to each other).
'tea' becomes 'cha' (cha is a type of tea).
'nonces' anagrammed gives 'connes'.
'connes' after 'cha' is 'CHACONNES'.

Can you help me to learn more?

(Another definition for chaconnes that I've seen is " Compositions".)

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