Related Clues:
- Housing add-ons
- House wings
- "Tetris" block shapes
- Sharp-angled letters
- Architectural extensions
- Some pipe bends
- Yellow belly?
- 90-degree pipes
- "Sell" anagram
- Full pairing?
- Architectural angles
- Wall bracket shapes
- Some pipe shapes
- Units of measurement, roughly the length of a human arm
- Wings you can't eat