Point of thorn damaged (5)
I believe the answer is:
north
'point' is the definition.
(north is a kind of point)
'thorn damaged' is the wordplay.
'damaged' is an anagram indicator.
'thorn' anagrammed gives 'NORTH'.
'of' acts as a link.
(Other definitions for north that I've seen before include "British leader" , "Compass bearing" , "PM 1770-82" , "Boreal; South's opposite" , "One of four bridge players" .)