Dark red wrapping around biscuit (8)
I believe the answer is:
macaroon
'biscuit' is the definition.
(I know that macaroon is a type of biscuit)
'dark red wrapping around' is the wordplay.
'dark red' becomes 'maroon' (I've seen this in another clue).
'wrapping' means one lot of letters goes inside another.
'around' becomes 'ca' (circa).
'maroon' placed around 'ca' is 'MACAROON'.
(Other definitions for macaroon that I've seen before include "cake" , "Sweet almond biscuit" , "Biscuit of egg-white and almonds or coconut" , "Sweet bit of food" , "Coconut-topped biscuit" .)