Artist not even clear in rear view (2,5)
I believe the answer is:
el greco
This clue could be a double definition.
'artist' is the first definition.
(I've seen this before)
'not even clear in rear view' is the second definition.
The definition suggests a singular noun which matches the answer.
Can you help me to learn more?
(Other definitions for el greco that I've seen before include "Spanish painter, nicknamed for his place of birth" , "Domenikos Theotokopoulos" , "Sp. painter, born Domen- ikos Theotokopoulos" , "Spanish painter born in Greece" , "Famous painter's nickname" .)