Dismissing (7)
I believe the answer is:
sacking
'dismissing' is the definition.
('sack' can be a synonym of 'dismiss')
This is all the clue.
(Other definitions for sacking that I've seen before include "Firing the coarse cloth" , "Terminating someone's employment" , "devastating" , "P45" , "Looting - coarse cloth - dismissal" .)