Bringing back rice (about a pound) and a cake (6)
I believe the answer is:
eclair
'cake' is the definition.
(eclair is a type of cake)
'bringing back rice about a pound and a' is the wordplay.
'bringing back' shows that the letters should be reversed in order.
'about' is an insertion indicator.
'a pound' becomes 'L' (abbreviation e.g. Lsd - pounds, shillings, pence).
'and' is a charade indicator (letters next to each other).
'l' put after 'a' is 'al'.
'rice' enclosing 'al' is 'rialce'.
'rialce' written backwards gives 'ECLAIR'.
(Other definitions for eclair that I've seen before include "Food" , "Dainty" , "Long chocolate cake for Claire" , "Cake, "long in shape but short in duration"" , "Finger-shaped cream-filled cake of choux pastry" .)