Almond biscuit (8)
I believe the answer is:
macaroon
'almond biscuit' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for macaroon that I've seen before include "Sweet almond biscuit" , "Biscuit of egg-white and almonds or coconut" , "Type of biscuit" , "Coconut-topped biscuit" , "Biscuit made with almond paste" .)