Expulsion, rough stuff (7)
I believe the answer is:
sacking
I believe this clue is a double definition.
'expulsion' is the first definition.
(thesaurus)
'rough stuff' is the second definition.
(rough material)
(Other definitions for sacking that I've seen before include "Dismissal (from job)" , "Firing the coarse cloth" , "made of hessian?" , "Firing; coarse material" , "P45" .)