Sophistication about good blokes from Northern Territory (10)
I believe the answer is:
refinement
'sophistication' is the definition.
(I've seen this before)
'about good blokes from northern territory' is the wordplay.
'about' becomes 're' (regarding).
'good' becomes 'fine' (both can mean satisfactory).
'blokes from northern territory' becomes 'ment' (I can't justify this - if you can you should believe this answer much more).
're'+'fine'+'ment'='REFINEMENT'
Can you help me to learn more?
(Other definitions for refinement that I've seen before include "Elegance, sophistication" , "Polish" , "Improvement; elegance" , "culture" , "Cultivation" .)