Point made with carbon copy (4)
I believe the answer is:
cape
'point' is the definition.
(type of geographical point)
'with carbon copy' is the wordplay.
'with' is a charade indicator (letters next to each other).
'carbon' becomes 'C' (C is the chemical symbol for carbon).
'copy' becomes 'ape' (ape can mean to copy or imitate).
'c' put next to 'ape' is 'CAPE'.
'made' is the link.
(Other definitions for cape that I've seen before include "Sleeveless overgarment" , "Cloak, robe" , "Outer garment" , "Batman has one" , "Wrath, say" .)