Possible Clues:

• Noah's sponsor calling for port
• Raphael made a switch between sides
• 5 across, for example, in a port on the White Sea
• A convert from one side to the other - Gabriel, for example
• Among others, Michael's in port
• One holding money in both hands in Russia
• Michael, perhaps, making a move from side to side
• A substitute accepted by rugby players in Russia
• Artist returned to alter line - Raphael, perhaps
• Russian port on the Dvina River