British send back spring rolls (4)
I believe the answer is:
baps
'rolls' is the definition.
(bap can mean a bread roll)
'british send back spring' is the wordplay.
'british' becomes 'b' (abbreviation e.g. in BBC).
'send back' is a reversal indicator.
'spring' becomes 'spa' (spa can mean a mineral spring).
'spa' in reverse letter order is 'aps'.
'b'+'aps'='BAPS'
(Other definitions for baps that I've seen before include "Round rolls of soft bread" , "buns" .)