Possible Clues:

• It used to be named Constantinople
• City in ruins built as new
• An imprudent old person of Slough was recommended not to do so
• Where one finds change at the centre of Dunstable
• Constantinople now
• One's brown animal has lost its tail in this city
• One's put on no end of weight drinking tawny port
• Sail North, but ordered into port
• Contemporary Constantinople
• A bustlin' boisterous foreign port