Criticism for staff (5)
I believe the answer is:
stick
I believe this clue is a double definition.
'criticism' is the first definition.
(I've seen this before)
'staff' is the second definition.
(I've seen this before)
'for' acts as a link.
(Other definitions for stick that I've seen before include "Adhere - cane" , "Switch < put up" , "Cane; criticism" , "Gear lever; adhere" , "School punishment once" .)