They bring out old farm machines (10)

I believe the answer is:

extractors

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

'old farm machines' is the wordplay.
'old' becomes 'ex' (prefix meaning former or onetime).
'farm machines' becomes 'tractors' (I've seen this in another clue).
'ex'+'tractors'='EXTRACTORS'

'out' is the link.

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I've seen this clue in the Sydney Morning Herald.

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