Shrub used for hedges (6)
I believe the answer is:
privet
'shrub used for hedges' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for privet that I've seen before include "Bushy evergreen shrub used for hedges" , "Half evergreen European shrub of the olive family" , "Common hedge shrub" , "Hedging shrub" , "Hedge for pert Vi" .)