Turn in (6)
'turn in' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for redeem that I've seen before include "Deliver from sin" , "Deposed Libyan dictator" , "Save from damnation or pay back loan" , "Save from sins or buy back" , "Win back" .)
'turn in' is the definition.
(synonyms)
This is the entire clue.
(Another definition for go to bed that I've seen is " Retire".)