Leading male with dad bod (6,6)
I believe the answer is:
father figure
'leading male' is the definition.
(a father figure leads the way)
'with dad bod' is the wordplay.
'with' says to put letters next to each other.
'dad' becomes 'father' (I've seen this before).
'bod' becomes 'figure' (synonyms).
'father' next to 'figure' is 'FATHER-FIGURE'.
(Other definitions for father figure that I've seen before include "authority" , "admired senior" .)