Possible Clues:

• Surrealist André Breton called him “the most Surrealist of us all”
• Focus of a Barcelona art museum
• Dalí countryman/contemporary
• Joan —, Spanish painter
• The other Spanish surrealist
• Painter/sculptor from Barcelona
• Painter Joan born in 2-Down
• 'Dog Barking at the Moon' artist Joan
• Spanish painter
• Artist given the 1958 Guggenheim International Award