Stout female's parent (6)
I believe the answer is:
father
'parent' is the definition.
(father is a kind of parent)
'stout female's' is the wordplay.
'stout' becomes 'fat' ('fat' can be similar in meaning to 'stout').
'female' becomes 'her' (I've seen this before).
'fat'+'her'='FATHER'
(Other definitions for father that I've seen before include "and 13: Jolly gift-deliverer" , "dad" , "Sire" , "So-called priest" , "pops" .)