Related Clues:
- Rocky - well-built
- Hard and compact
- Rocky — rough — hard
- Companion of liquid and gas
- Build like a bulldog
- Sphere or pyramid
- Well-constructed
- *Sphere or cube
- Quite substantial
- Rough as a partially covered floor?
- PRISM, for example, is old scheme
- Built like a bulldog
- Firm exchanged contracts over island
- Sturdily constructed
- 'Do me a ___'