Fellows penning choice of language offering words of ill-will (12)

I believe the answer is:

maledictions

'words of ill-will' is the definition.

'fellows penning choice of language' is the wordplay.
'fellows' becomes 'males'.
'penning' is an insertion indicator.
'choice of language' becomes 'diction'.
'males' enclosing 'diction' is 'MALEDICTIONS'.

'offering' is the link.

I've seen this clue in The Times.

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