Turns in (4,3,4)
There are a few possibilities for this:
hits the sack
'turns in' is the definition.
('retire' can be a synonym of 'turn in')
This is the entire clue.
(Other definitions for retires that I've seen before include "Pulls out" , "turns in" , "Gives up work" , "Goes to bed" , "Withdraws" .)
(Another definition for submits that I've seen is " Yields, capitulates".)
'turns in' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for redeems that I've seen before include "Pays off loans" , "Buys back" .)
'turns in' is the definition.
('hit the sack' can be a synonym of 'turn in')
This is the entire clue.