South African shrub (6)
I believe the answer is:
protea
'south african shrub' is the definition.
(type of bush)
This is the entire clue.
(Other definitions for protea that I've seen before include "South African shrub" , "South African plant" , "S.African flowering shrub" , "South African evergreen" , "S. African shrub; to pear (anag.)" .)