Related Clues:

• 90-degree angle
• Pipe with a bend
• Building addition, sometimes
• Half of a square
• Architect's wing
• The 12th of 26
• Right-angle shape
• Old Nick's 'eadquarters
• Pipe connection
• Wing of a building
• Angular joint
• Chicken portion
• Wright angle
• Unfeathered wing
• Blueprint extension