"Persistence of Memory" painter (4)
I believe the answer is:
'persistence of memory painter' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for dali that I've seen before include "Salvador --, twentieth century Spanish surrealist painter" , "Controversial painter" , "Salvador among artists" , "Surrealist Spanish painter, d. 1989" , "Tree" .)