Church, roused excitedly, sang together (8)

I believe the answer is:

chorused

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'sang together' is the definition.
'chorused' can be an answer for 'sang' (chorusing is a kind of singing). I am not certain of the 'together' bit.

'church roused excitedly' is the wordplay.
'church' becomes 'ch' (common abbreviation).
'excitedly' indicates an anagram (letters excited or stimulated into a new form).
'roused' with letters rearranged gives 'orused'.
'ch'+'orused'='CHORUSED'

Can you help me to learn more?

(Another definition for chorused that I've seen is " Sang".)

I've seen this clue in The Guardian.

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