Related Clues:

• See 5-Down
• Christie's 'Death on the ___'
• Egypt's main water supply
• Aswan Dam locale
• Hit high into the air
• Bank-washer in Cairo
• 'Cleopatra' backdrop
• Dye source
• Rosetta's river
• Cataract site
• ___-high
• Marine shade
• Business suit shade
• Site of annual floods
• ___ lazuli