Chopper for one British consumer (9)
I believe the answer is:
eggbeater
'chopper' is the definition.
(synonyms)
'for one british consumer' is the wordplay.
'for one' becomes 'eg' (I've seen this in other clues).
'british' becomes 'GB' (abbreviation for Great Britain).
'consumer' becomes 'eater' (eater is a kind of consumer).
'eg'+'gb'+'eater'='EGGBEATER'
(Other definitions for eggbeater that I've seen before include "Kitchen gizmo" , "Whisk" , "Meringue maker's tool" , "Kitchen utensil" .)