Possible Clues:

• Cream-soda flavoring
• Neapolitan flavor
• Ice-cream article in house
• Flavouring substance in vehicle, one everybody rejected
• Pods to flavour, ice-cream, say
• Plain and without any extras (informal)
• House embracing a new flavour
• Ordinary sort of castle maybe for a knight to occupy
• White ice-cream flavor
• Article in large house, something that adds taste