Biscuit barrel brought back by Biggles' companion (6,3)
I believe the answer is:
ginger nut
'biscuit' is the definition.
(type of biscuit)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for ginger nut that I've seen before include "Spicy biscuit" , "Kind of biscuit" , "Type of biscuit" , "redhead?" , "Variety of biscuit" .)