| POLYP | Bit of coral |
| REEF | Ridge of rock, of coral |
| REEFS | Veins of ore or ridges of coral |
| GREAT | Large ridge of coral off the coast of Queensland, Australia (5,7,4) |
| ATOLL | A circular coral reef or string of coral islands surrounding a lagoon |
| SEED | Unit of botanical life such as an acorn, bean, conker, kernel, key, nut, pea, pip or stone; a fragment of coral; a bubble in glass; or, a small crystal from which a larger one is grown (4) |
| MALDIVES | Country consisting of a chain of coral islands in the Indian Ocean (8) |
| SPICULE | From "ear of grain", word for a needlelike particle, process or splinter of coral, crystal, ice, osseous tissue, sea sponge, silica or solar plasma (7) |
| BAHAMAS | The _, a group of coral islands in the Caribbean, the capital of which is Nassau (7) |
| BARRIERREEF | Great , large area of coral off the coast of Queensland (7,4) |
| GREATBARRIERREEF | Large area of coral off the coast of Queensland (5,7) |
| SEAFAN | Species of coral |
| ISLETS | Some are made of coral |
| CLASP | Grip both ends of coral snake |
| MADREPORE | A mere drop polluted variety of coral |
| CAY | Low insular bank or reef of coral |
| OCEANWARMING | Cause of coral reef bleaching, basically |
| POLYPS | Sloppy kind of coral growths (6) |
| COAL | Mineral forming parts of coral |
| SEA | Red of Coral |
