Have another pull, it's very sore (6)
I believe the answer is:
redraw
'it's very sore' is the definition.
I can't judge whether this defines the answer.
'have another pull' is the wordplay.
'have' becomes 'r' (I can't justify this - if you can you should give a lot more credence to this answer).
'another' becomes 'e' (I've seen this in other clues).
'pull' becomes 'draw' (draw is a kind of pull).
'r'+'e'+'draw'='REDRAW'
Can you help me to learn more?
(Other definitions for redraw that I've seen before include "Adjust" , "Delineate again" , "Change" , "Find a new winner" , "Warder (anag)" .)