Possible Clues:

• Piece of cake, maybe
• Pudding, sweet
• How sweet to leave it so sound
• Sounds as if one must leave one, sweet
• Napoleon, at times
• Fruit and nuts, perhaps, succeeded in dry barren area
• Last course, sweet
• Tapioca pudding, e.g.
• Calorie-crammed course
• Head of state to be seen in due course