Related Clues:

• Impressive work
• With 11-Down, blue-book exam
• -- Dei
• Singular opera?
• Magnum __: great work
• The New Yorker piece
• Numbered music
• ___ Dei ("The Da Vinci Code" group)
• Emersonian effort
• Test you can't really guess on
• Musical work with a number
• Catalogued work
• School composition
• Magnum ___
• Monograph