Possible Clues:

• Sugared
• Frank swallows drug covered in sugar
• How sweet to have been able to have passed away like that!
• How sweet to have been able to have passed away like this
• Like some sweet potatoes
• Able to have passed away that way - how sweet!
• Preserve stopped being preserved
• Sugared drug Frank has swallowed
• Frank swallows tablet coated with sugar
• 'E might leave this, to be frank, but it's all so sweet