Shun and finally cut (6)
I believe the answer is:
eschew
'shun' is the definition.
(I know that shun can be written as eschew)
'finally cut' is the wordplay.
'finally' becomes 'esc' (I can't explain this - if you can you should believe this answer much more).
'cut' becomes 'hew' (hew can mean to chop or cut).
'esc'+'hew'='ESCHEW'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for eschew that I've seen before include "Abstain from, shun" , "'Avoid, stay away from (6)'" , "'Avoid, shun (6)'" , "Abstain from (an activity)" , "give up" .)