Further part for choral society (4)

I believe the answer is:

also

'further' is the definition.
(thesaurus)

'part for choral society' is the wordplay.
'part' says the answer is hidden in the clue.
'ALSO' is hidden within 'for choral society'.

(Other definitions for also that I've seen before include "Likewise" , "What's more" , "Old" , "Plus" , "As well, in addition" .)

I've seen this clue in The Guardian.

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