Possible Clues:

• Rode tram precariously around back of district in foreign port
• Carnivore died in butt of port
• Port and crackers passed left by so-and-so
• Rogue crazy up in Dutch port
• Cad died before noon in Dutch port
• Port and nuts passed back to rank chap?
• Scoundrel meeting barrier in Dutch port
• Dodgy type adds block for city
• Dreamt rot about the Dutch port
• Swimmer in river crazy about Dutch port