Make fewer points (6)
I believe the answer is:
lessen
'make fewer' is the definition.
(I've seen this before)
'points' is the wordplay.
I cannot quite see how this works, but
'points' could be 'ess' (east and south are compass points) and 'ess' is found within the answer.
The remaining letters 'len' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for lessen that I've seen before include "Make fewer in number" , "Become smaller or fewer" , "Abate" , "Reduce in number" , "Make smaller for lenses" .)