Typical Commander-in-Chief captures young female (7)
I believe the answer is:
classic
'typical' is the definition.
(thesaurus)
'commander-in-chief captures young female' is the wordplay.
'commander-in-chief' becomes 'CIC' (abbreviation).
'captures' means one lot of letters goes inside another.
'young female' becomes 'lass'.
'cic' enclosing 'lass' is 'CLASSIC'.
(Other definitions for classic that I've seen before include "Very great work of art" , "Good example of its kind" , "The best of its kind" , "Important horse race" , "Remarkably typical" .)