Cashew family tree (5)
I believe the answer is:
sumac
'cashew family tree' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sumac that I've seen before include "Tree or shrub; reverse of French writer" , "Hairy-fruited rhus" , "Garden shrub" , "Smoke-bush" , "Rudely brief" .)