Possible Clues:

• Former African capital
• City in Nigeria
• Nigeria's principal city
• Capital before Abuja
• Former capital and chief port of Nigeria, on the Bight of Benin
• Lass turning up to meet seaman in port
• Chief port and former capital of Nigeria
• Leaders from Luxembourg are getting old South African port
• One often given porridge and exceptionally large port
• A good look round South African city