Precisely locate the sharp end (8)
I believe the answer is:
pinpoint
This might be a double definition.
'precisely locate' is the first definition.
'pinpoint' can be an answer for 'locate' (pinpointing is a kind of locating). I am unsure of the 'precisely' bit.
'sharp end' is the second definition.
'pinpoint' can be an answer for 'end' (pinpoint is a kind of end). I am unsure of the 'sharp' bit.
'the' is the link.
Can you help me to learn more?
(Other definitions for pinpoint that I've seen before include "Define precisely" , "Locate precisely" , "Precisely indicate" , "Find the position of" , "Tiny dot; locate exactly" .)