Related Clues:
- Building wing shape, sometimes
- Dual-purpose room shape
- 90-degree building addition
- Wall-bracket shape
- Add, as territory
- Letter-shaped building addition
- Pipe elbow
- Middle of a melee?
- Lemon head?
- Lemonhead?
- Certain big couch shape
- Wing of a building, perhaps
- Orthogonal joint
- Colonize, more politely
- Right-angled alphabetic character