Points to copy when taken on by chartered surveyor (5)
I believe the answer is:
capes
'points' is the definition.
(a cape is a type of geographical point)
'copy when taken on by chartered surveyor' is the wordplay.
'copy' becomes 'ape' ('ape' can be a synonym of 'copy').
'when taken on by' is an insertion indicator.
'chartered surveyor' becomes 'cs' (abbreviation for chartered surveyor).
'ape' inserted inside 'cs' is 'CAPES'.
'to' is the link.
(Other definitions for capes that I've seen before include "Cloaks or headlands" , "Sleeveless cloaks - promontories" , "Short cloaks" , "may be worn" , "Space for cloaks" .)