Artist who can't visualise seascapes? (8)
I believe the answer is:
I believe this is a double definition.
'artist' is the first definition.
(Edwin Landseer RA)
'who can't visualise seascapes?' is the second definition.
(cryptic definition - person seeing land)
(Other definitions for landseer that I've seen before include "Dan reels about the painter" , "See 1 down" , "Victorian animal painter" , "The Monarch of the_Glen painter" , "Sir Edwin -, Monarch of the Glen painter" .)