Love duets possibly thrown out (6)
I believe the answer is:
ousted
'thrown out' is the definition.
('oust' can be a synonym of 'throw out')
'love duets possibly' is the wordplay.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'possibly' indicates an anagram.
'duets' is an anagram of 'usted'.
'o'+'usted'='OUSTED'
(Other definitions for ousted that I've seen before include "Forcibly ejected from office or position" , "Expelled from office or power" , "Offences against the law of the land" , "Drove or ejected from office" , "Put forcibly out of office" .)