Possible Clues:

• Red wine of Tuscany
• Greek character opposed to drink
• Greek character opposed to wine
• 'It goes with china? No, it comes in glass (7)'
• Greek character against Italian wine
• Dry wine
• Upright character in church opposing drink
• Dry red wine from Tuscany
• Italian wine favored by 66-Across
• Letter from Greece, as opposed to wine from Italy