Cook with mum, making bread (4)
I believe the answer is:
dosh
'bread' is the definition.
(both can informally mean money)
'cook with mum' is the wordplay.
'cook' becomes 'do' (I've seen this in other clues).
'with' says to put letters next to each other.
'mum' becomes 'sh' (I've seen this in other clues).
'do'+'sh'='DOSH'
'making' is the link.
(Other definitions for dosh that I've seen before include "cash" , "currency" , "Ready" , "Contents of purse" , "Money (slang)" .)