Mother stuffing turkey, maybe -- this one's tough (2-3)
I believe the answer is:
he-man
'this one's tough' is the definition.
(a tough person)
'mother stuffing turkey maybe' is the wordplay.
'mother' becomes 'ma' (ma can mean mother).
'stuffing' is an insertion indicator.
'turkey maybe' becomes 'hen' (female turkey).
'ma' inserted inside 'hen' is 'HE-MAN'.
(Other definitions for he-man that I've seen before include "Tough guy, doubly male" , "Macho type" , "Hunk" , "Extremely virile male" , "Macho chap" .)