Possible Clues:

• Drink from island I left - and half of another!
• Fortified drink similar to a flip
• Medal given by heartless king in return for a drink
• Drink similar to advocaat
• Festive beverage
• A drink
• Looking back, passed horse inside for Christmas drink
• Drink consumed at this time of the year
• Alcoholic drink, three gallons, one drunk
• A punch for bedtime, perhaps