Cut, one noticed, to a point (4)
I believe the answer is:
sawn
'cut' is the definition.
(cut with a saw)
'one noticed to a point' is the wordplay.
'one noticed' becomes 'saw' (I've seen this in another clue).
'to a point' becomes 'n' (North).
'saw'+'n'='SAWN'
(Other definitions for sawn that I've seen before include "timber must be" , "Cut with serrated blade" , "(Of wood) cut" , "Severed" , "went up and down?" .)