Crossword Genius

Grand group of swingers (3,4)

Ross

I believe the answer is:

big band

'swingers' is the definition.
(musicians who might play swing music)

'grand group' is the wordplay.
'grand' becomes 'big'.
'group' becomes 'band' (band can mean a group of people).
'big'+'band'='BIG BAND'

'of' acts as a link.

(Other definitions for big band that I've seen before include "Large jazz ensemble" , "Dance orchestra of 30s" , "Large group of musicians" .)

I've seen this clue in The Guardian.
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