Crossword Genius

Join duo (6)

Ross

I believe the answer is:

couple

I believe this clue is a double definition.

'join' is the first definition.
(coupling is a kind of joining)

'duo' is the second definition.
('couple' can be a synonym of 'duo')

(Other definitions for couple that I've seen before include "Two of a kind" , "item" , "Pair of attached people" , "Two - join up" , "The pair to join together" .)

I've seen this clue in The Telegraph.
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