Abuse staff (5)
I believe the answer is:
stick
I believe this is a double definition.
'abuse' is the first definition.
(stick can mean criticism or abuse)
'staff' is the second definition.
(I've seen this before)
(Other definitions for stick that I've seen before include "Adhere - cane" , "Glue; piece of wood" , "Staff - criticism" , "Gear lever; adhere" , "School punishment once" .)