Artist visiting home country (4)
I believe the answer is:
iran
'country' is the definition.
(Iran is a country)
'artist visiting home' is the wordplay.
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'visiting' means one lot of letters goes inside another.
'home' becomes 'in' (to be in is to be (at) home).
'ra' inserted into 'in' is 'IRAN'.
(Other definitions for iran that I've seen before include "Asian country" , "Modern Persia (4)" , "Farsi-speaking country" , "Modern name for Persia" , "Persia some time ago" .)