Throw off (4)
I believe the answer is:
shed
'throw off' is the definition.
(I know that shed is a more specific form of the action the throw off)
This is the entire clue.
(Other definitions for shed that I've seen before include "Threw off the hut" , "Outbuilding with a single story" , "Discarded" , "Simple building; discard" , "Take off in hut?" .)