Out of shape Corsica don boxes, getting squeezed for notes (10)

I believe the answer is:

accordions

'boxes getting squeezed for notes' is the definition.
(squeezeboxes, musical instruments)

'out of shape corsica don' is the wordplay.
'out of shape' indicates an anagram.
'corsica'+'don'='corsicadon'
'corsicadon' with letters rearranged gives 'ACCORDIONS'.

I've seen this clue in The Telegraph.

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