Spending little, squad left for the UK (8)
I believe the answer is:
nearside
'left for the uk' is the definition.
(side of the vehicle near the kerb - left in the UK)
'spending little squad' is the wordplay.
'spending little' becomes 'near' (near can mean miserly).
'squad' becomes 'side'.
'near'+'side'='NEARSIDE'
(Other definitions for nearside that I've seen before include "On which one finds passenger" , "horseman's left" , "Vehicle's left (in Britain)" , "Part of car closest to kerb" , "left by kerb?" .)