He painted our mill anew (7)
I believe the answer is:
murillo
'he painted' is the definition.
The definition suggests a singular noun which matches the answer.
'our mill anew' is the wordplay.
'anew' is an anagram indicator.
'our'+'mill'='ourmill'
'ourmill' with letters rearranged gives 'MURILLO'.
Can you help me to learn more?
(Other definitions for murillo that I've seen before include "Span. painter" , "Spanish religious painter, 1618-82" , "Artist" , "Spanish painter of street arabs" , "17th century Spanish painter" .)