Scotswoman, half-cut one from Jura, perhaps (4)
I believe the answer is:
isle
'jura perhaps' is the definition.
(I know that Jura is a isle)
'scotswoman half-cut one' is the wordplay.
'scotswoman' becomes 'isl' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'half cut' suggests halving the letters.
'one' becomes 'me' (a setter might use 'one' to humourously mean 'me').
'me' with half the letters taken is 'e'.
'isl'+'e'='ISLE'
'from' is the link.
Can you help me to learn more?
(Other definitions for isle that I've seen before include "description of Britain" , "somewhere surrounded by water" , "Detached territory" , "Skye or Capri?" , "Wight, Man or Skye" .)