Extra cash for something to eat (5)
I believe the answer is:
morel
'something to eat' is the definition.
I can't judge whether this definition defines the answer.
'extra cash' is the wordplay.
'extra' becomes 'more' (I've seen this before).
'cash' becomes 'l' (The pound sterling symbol is an elaborate L).
'more'+'l'='MOREL'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for morel that I've seen before include "Edible fungus" , "Edible mushroom" , "One has a cap" , "Type of mushroom" .)