Related Clues:
- New wing, perhaps
- Perpendicular wing
- Right-angled annex
- Perpendicular extension
- Late start?
- Allen-wrench shape
- Pedestal feature
- Wright wing, maybe
- Certain bent pipe
- House add-on
- Groove cut into a board
- Building wing shape
- Extension that forms a right angle
- Wing shape, perhaps
- Bookshelf bracket shape