Bro and mum meeting with port (5)
I believe the answer is:
mario
'bro' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'mum meeting with port' is the wordplay.
'mum' becomes 'ma' (both can mean mother).
'meeting with' is a charade indicator (letters next to each other).
'port' becomes 'rio' (Rio de Janeiro is a port).
'ma'+'rio'='MARIO'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for mario that I've seen before include "Lanza" , "-- Puzo, author of The Godfather" .)