Nan having success as one bringing home bacon? (11)
I believe the answer is:
breadwinner
'one bringing home bacon?' is the definition.
(a breadwinner makes money for a family)
'nan having success' is the wordplay.
'nan' becomes 'bread' (naan bread).
'having' says to put letters next to each other.
'success' becomes 'winner' (winner can mean something successful).
'bread'+'winner'='BREADWINNER'
'as' acts as a link.
(Other definitions for breadwinner that I've seen before include "Family's main earner" , "Person whose earnings support the family" , "Main wage earner" , "Rolls acquired by this" , "traditional husband?" .)