Taken in by Mafia women raising abandoned child (4)
I believe the answer is:
waif
'abandoned child' is the definition.
(I've seen this before)
'taken in by mafia women raising' is the wordplay.
'taken in by' indicates a hidden word.
'raising' is a reversal indicator.
'fiaw' is hidden in the letters of 'mafia women'.
'fiaw' written backwards gives 'WAIF'.
(Other definitions for waif that I've seen before include "Ragamuffin" , "neglected issue" , "Be incongruous" , "Forsaken child" , "Homeless child - thin person" .)