Crossword Genius

Piano tunes as duos (5)

Ross

I believe the answer is:

pairs

'duos' is the definition.
('pair' can be a synonym of 'duo')

'piano tunes' is the wordplay.
'piano' becomes 'p'.
'tunes' becomes 'airs' ('air' can be a synonym of 'tune').
'p'+'airs'='PAIRS'

'as' acts as a link.

(Other definitions for pairs that I've seen before include "Duos" , "Couples" , "golfing matches" .)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app