Money for iced treat (5)
I believe the answer is:
lolly
This might be a double definition.
'money' is the first definition.
(slang term)
'iced treat' is the second definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'for' acts as a link.
Can you help me to learn more?
(Other definitions for lolly that I've seen before include "Money (sl.)" , "Moolah" , "A sweet; money (slang)" , "Loot, dosh" , "dough" .)