Trifling sum for strip (7)
I believe the answer is:
peanuts
I believe this is a double definition.
'trifling sum' is the first definition.
(peanuts can mean a tiny amount of money)
'strip' is the second definition.
(comic strip featuring Charlie Brown and Snoopy)
'for' is the link.
(Other definitions for peanuts that I've seen before include "what could make up a packet?" , "Chickenfeed" , "Popular edible seed pods" , "Very small amount of money" , "Trivial amount of money" .)