Possible Clues:

• Marco Polo, for one
• Relating to La Serenissima
• Kind of blind?
• One of those in Rialto ain't even working
• Blinds from an Italian city
• An event I organised for Marco Polo, perhaps
• Awkwardly naive about web in The Merchant of Venice
• Polo, say, in an event I organised
• — blind; — red; — window
• Shylock, for one