Air cut sugar till processed for farmer (15)

I believe the answer is:

agriculturalist

'farmer' is the definition.
(thesaurus)

'air cut sugar till processed' is the wordplay.
'processed' is an anagram indicator.
'air'+'cut'+'sugar'+'till'='aircutsugartill'
'aircutsugartill' anagrammed gives 'AGRICULTURALIST'.

'for' is the link.

I've seen this clue in The Times.

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