Related Clues:

• Diego Rivera's specialty
• Urban wall art, perhaps
• Sistine Chapel mural
• Sistine Chapel feature
• Many a Giotto work
• Front torn off, making alterations to decorative fabric
• Certain street art
• Painting, one bound to lift company
• Painting made by male artist enthralling university student
• Unstable forces in painting
• Leonardo's 'The Last Supper,' e.g
• Picture disbandment of forces
• Bill or placard
• Art painted on a wall
• Work that may be paid for by funds raised at Philadelphia's Wall Ball