Song from duo without piano (3)
I believe the answer is:
air
'song' is the definition.
(thesaurus)
'duo without piano' is the wordplay.
'duo' becomes 'pair' ('pair' can be a synonym of 'duo').
'without' is a deletion indicator.
'piano' becomes 'p'.
'pair' with 'p' removed is 'AIR'.
'from' acts as a link.
(Other definitions for air that I've seen before include "character" , "Broadcast; atmosphere" , "Tune - mood - atmosphere" , "Simple melody's" , "14" .)