Related Clues:

• Bring to the mix
• Contribute to the pot
• Write a codicil
• House extension
• Enlarge a house
• Not standard
• Computer peripheral, e.g.
• Supplemental component
• Include, as a tip
• Home builder's afterthought
• Expansion
• Use as an ingredient
• Make part of the mix
• Garage, perhaps
• Building wing, e.g.