Turned — off (6)
'turned off' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for alienated that I've seen before include "Estranged" , "disaffected" , "divorced" , "Date Liane (anag.)" , "put off" .)
I believe this is a double definition.
'turned' is the first definition.
(I've seen this before)
'off' is the second definition.
(I've seen this before)
(Other definitions for rancid that I've seen before include "Stale, rank" , "(Of butter) stale" , "Unpleasantly stale" , "Stale, with an offensive smell" , "Rank-smelling." .)