Related Clues:

• See 54-Across
• See 5-Down
• Christie's 'Death on the ___'
• Where Moses got the word
• Egypt's main water supply
• Mideast hot spot
• Aswan Dam locale
• Bank-washer in Cairo
• 'Cleopatra' backdrop
• Rosetta's river
• Cataract site
• Site of annual floods
• Blue shade
• 'Blue' or 'White' river
• Site of 1967 fighting