Possible Clues:

• Wine produced at a party that took over the GPO
• Dessert wine from a Portuguese Atlantic island
• Wine and nuts I consumed in time
• Insane time around capital of Ibiza island
• Wine and cheese: uplifting with a little Gershwin
• Portuguese island, capital Funchal
• Wine created by one artist
• Wine produced by Middle Eastern country no end
• Portuguese island - capital: Funchal
• Portuguese island west of Morocco