Lie about British food (5)
I believe the answer is:
table
'food' is the definition.
(table is a kind of food)
'lie about british' is the wordplay.
'lie' becomes 'tale' (I've seen this before).
'about' means one lot of letters goes inside another.
'british' becomes 'b' (abbreviation e.g. in 'BBC').
'tale' going around 'b' is 'TABLE'.
(Other definitions for table that I've seen before include "Slab" , "Flat surfaced piece of furniture" , "Statistical chart" , "Dummy hand (bridge)" , "Submit for consideration" .)