Do they do us wrong in the doubles? (4)
I believe the answer is:
duos
'the doubles?' is the definition.
Although both the answer and definition are plural nouns, I can't see how they can define each other.
'do they do us wrong' is the wordplay.
'do us' anagrams to 'DUOS'.
However, I'm not sure how the anagram is indicated.
'in' is the link.
Can you help me to learn more?
(Other definitions for duos that I've seen before include "Pairs" , "people like Simon and Garfunkel" , "braces" .)