One contributing to very little? (6)
I believe the answer is:
peanut
'little?' is the definition.
('peanut' can be a synonym of 'little')
'one contributing to' is the wordplay.
I cannot really understand how this works, but
'one' could be 'an' (an apple is one apple) and 'an' is located in the answer.
This explanation may well be incorrect...
'very' is the link.
Can you help me to learn more?
(Other definitions for peanut that I've seen before include "Singularly little money" , "butter ingredient" , "Item of fruit" , "Leguminous seed eaten as snack or butter" , "Eat pun for the hard fruit" .)