Punch name in ticket (4)
I believe the answer is:
tang
'punch' is the definition.
(thesaurus)
'name in ticket' is the wordplay.
'name' becomes 'n' (common abbreviation e.g. on forms).
'in' means one lot of letters goes inside another.
'ticket' becomes 'tag' (I've seen this before).
'n' put inside 'tag' is 'TANG'.
(Other definitions for tang that I've seen before include "Piquancy - Chinese dynasty" , "Coarse seaweed" , "Strong flavour" , "Bite" , "Tart spiciness" .)