Nuts go well with cheese (8)
I believe the answer is:
crackers
'nuts' is the definition.
(both can informally mean mad)
'go well with cheese' is the wordplay.
I cannot quite understand how this works, but
'go' could be 'crack' (cracking is a kind of going) and 'crack' is present in the answer.
The remaining letters 'ers' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for crackers that I've seen before include "and some others touched" , "they may be on the table at Christmas" , "nuts and > bananas" , "Christmas items" , "Biscuits; fireworks" .)