Possible Clues:

• 'Three Musicians' artist
• Films thus absorbing a pioneer of Cubism
• Cubist artist
• ''Give me a museum and I'll fill it'' speaker
• Shot, like very famous artist
• So aspic is for the Spanish artist
• "Guernica" painter Pablo
• A cop is trained to keep first of specimens, one often exhibited
• Artist is idiot in very good company
• Artist's image in miniature in part of note