Crossword Genius

Artist who said "A line is a dot that went for a walk" (4)

Ross

I believe the answer is:

klee

(Other definitions for klee that I've seen before include "Paul - - , Swiss painter" , "Paul --, Swiss surrealist" , "Paul ---, Swiss artist" , "Auction offerer" .)

I've seen this clue in The New York Times.
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