Bachelor in northern town wants fur (5)
I believe the answer is:
sable
'fur' is the definition.
(I know that sable is a type of fur)
'bachelor in northern town' is the wordplay.
'bachelor' becomes 'B' (abbreviation e.g. BA=Bachelor of Arts).
'in' is an insertion indicator.
'northern town' becomes 'sale' (I can't explain this - if you can you should give a lot more credence to this answer).
'b' inserted inside 'sale' is 'SABLE'.
'wants' acts as a link.
Can you help me to learn more?
(Other definitions for sable that I've seen before include "Type of fur" , "Adventurous courage" , "Black (heraldry); fur" , "Bales of precious fur" , "Marten's fur - dark black" .)