Related Clues:
- See how spoken this is underwater
- Marine colony former
- Atoll's composition
- Worthless horse
- Flagstone?
- Wear green
- Well I'm blowed! Bald, shaved and pink!
- Greenish, semi-precious stone
- Semiprecious stone - exhaust
- Tiny animal forming reef
- Calcareous skeletal remains forming reefs
- (Massed skeletons of) tiny invertebrate
- Animal forming reef
- Ornamental semiprecious stone
- Creature building reef