Domain of artistic movement one's abandoned (5)
I believe the answer is:
realm
'domain' is the definition.
(I've seen this before)
'artistic movement one's abandoned' is the wordplay.
'artistic movement' becomes 'realism' (realism is a kind of artistic movement).
'one's' becomes 'is' (roman numeral).
'abandoned' suggests deleting specific letters.
'realism' with 'is' taken away is 'REALM'.
'of' acts as a link.
(Other definitions for realm that I've seen before include "Kingdom or sphere" , "A Nation" , "Country" , "Kingdom; field of interest" , "monarch's responsibility" .)