Country fellow at home, visiting a Royal Academician (9)
I believe the answer is:
argentina
'country' is the definition.
(Argentina is an example)
'fellow at home visiting a royal academician' is the wordplay.
'fellow' becomes 'gent' (synonyms).
'at home' becomes 'in' (similar in meaning).
'visiting' is an insertion indicator.
'royal academician' becomes 'ra' (short for Royal Academician).
'gent'+'in'='gentin'
'a'+'ra'='ara'
'gentin' inserted inside 'ara' is 'ARGENTINA'.
(Other definitions for argentina that I've seen before include "Song from 'Evita' - 'Don't Cry For Me . . . . . . . . . '" , "part of 18 [SOUTH AMERICA]" , "South American country" , "Evita's land" , "An ingrate in S American country" .)