Related Clues:

• Work in oil
• Matisse's mastery
• High school course
• Focus of some exhibits
• Guggenheim display
• Curator's concern
• Icon
• Piece by Matisse
• Tony-winning play of 1998
• Lichtenstein's forte
• Campaigner's concern
• Public relations focus
• Collector's collection, perhaps
• '... but is it ___?'
• Father's concern?