Got any bananas to add to bread and butter? (5,4)
I believe the answer is:
nanny goat
'butter?' is the definition.
(animal which butts)
'got any bananas to add to bread' is the wordplay.
'bananas' indicates an anagram (informal term for mad).
'to add to' means one lot of letters go next to another.
'bread' becomes 'nan' (variant spelling of naan).
'got'+'any'='gotany'
'gotany' is an anagram of 'nygoat'.
'nygoat' after 'nan' is 'NANNY-GOAT'.
'and' acts as a link.
(Other definitions for nanny goat that I've seen before include "Female farm animal" , "milk producer" , "Butter" , "Billy's partner?" .)