Possible Clues:

• Retreating with weapons over a long time in Guyana
• A rare medic all but rejected sweetener
• Rum dream dissipating over time
• Sweetener made rare when processed
• What should be sweet dream, curiously filled with ecstasy and divine sun
• A dreamer swilling rum
• Drunken camaraderie CIA banned? That's rum
• Red Sea rising over a source of sweetness
• Sugar for a dreamer, weirdly
• A dreamer (anag.)