Garden hedge plant (6)
I believe the answer is:
privet
'garden hedge plant' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for privet that I've seen before include "Oleaceous shrub" , "Let the vet rip up the hedge" , "Garden hedge plant" , "Hedging shrub" , "Hedge for pert Vi" .)