Amateur artist capturing fellow in country (9)
I believe the answer is:
argentina
'country' is the definition.
(Argentina is an example)
'amateur artist capturing fellow in' is the wordplay.
'amateur' becomes 'a'.
'artist' becomes 'ra' (Royal Academician, member of Royal Academy of Arts).
'capturing' indicates putting letters inside.
'fellow' becomes 'gent' ('gent' can be a synonym of 'fellow'**).
'gent'+'in'='gentin'
'ra' enclosing 'gentin' is 'rgentina'.
'a'+'rgentina'='ARGENTINA'
(Other definitions for argentina that I've seen before include "An ingrate in S American country" , "Silver country" , "Evita's land" , "part of 18 [SOUTH AMERICA]" , "Republic" .)