A wound made with a point that's sharp (5)
I believe the answer is:
acute
'sharp' is the definition.
(I know that sharp can be written as acute)
'a wound made with a point' is the wordplay.
'a wound' shows that the letters should be reversed in order (as in wound back).
'made' becomes 'tuc' (I can't explain this - if you can you should give a lot more credence to this answer).
'with' is a charade indicator (letters next to each other).
'point' becomes 'e' (compass point).
'tuc'+'a'='tuca'
'tuca' in reverse letter order is 'acut'.
'acut'+'e'='ACUTE'
'that's' acts as a link.
Can you help me to learn more?
(Other definitions for acute that I've seen before include "Perspicacious" , "not seen in cafe here!" , "Keen; severe" , "Grave" , "Keen, good or sharp, senses say" .)