Warder’s wages (5)
I believe the answer is:
screw
I believe this clue is a double definition.
'warder's' is the first definition.
(screw can mean a prison warden)
'wages' is the second definition.
(I've seen this before)
(Other definitions for screw that I've seen before include "wages" , "Prison guard, colloquially" , "Pay" , "may need a driver" , "Tapered fastener with a slotted head" .)