Agree with eating cake, creating division (7)
I believe the answer is:
subunit
'division' is the definition.
Both the definition and answer are singular nouns.
Perhaps you can see a link between them that I don't see?
'agree with eating cake' is the wordplay.
'agree with' becomes 'suit' (suiting is a kind of agreeing. I am not sure about the 'with' bit.).
'eating' indicates putting letters inside.
'cake' becomes 'bun' (bun is a type of cake).
'suit' enclosing 'bun' is 'SUBUNIT'.
'creating' acts as a link.
Can you help me to learn more?
(Other definitions for subunit that I've seen before include "Distinct component of something bigger" , "Constituent" .)