They produce vegetables for red-faced athletes (7,7)

I believe the answer is:

scarlet runners

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'they produce vegetables' is the definition.
The definition suggests an adverb but the answer is not.

'red-faced athletes' is the wordplay.
'red-faced' becomes 'scarlet' (I've seen this in another clue).
'athletes' becomes 'runners' (runner is a kind of athlete).
'scarlet'+'runners'='SCARLET RUNNERS'

'for' is the link.

Can you help me to learn more?

I've seen this clue in The Irish News.

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