Put aside (6)
I believe the answer is:
shelve
'put aside' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for shelve that I've seen before include "Defer (a plan or project)" , "Place on a horizontal surface" , "Put aside for the present - on a ledge?" , "Ditch" , "Defer (a plan/project)" .)