Couple in generally OK environment (4)

I believe the answer is:

yoke

'couple' is the definition.
(synonyms)

'in generally ok environment' is the wordplay.
'in' indicates a hidden word.
'YOKE' is hidden within 'generally ok environment'.

(Other definitions for yoke that I've seen before include "An oppressive and burdensome restraint" , "Wood joining draught oxen" , "Oxen harness" , "Oppressive rule" , "form of slavery?" .)

I've seen this clue in The Telegraph.

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