| Answer | Crossword Clue |
|---|---|
| CORAL | Atoll's composition |
| ISLES | Atolls |
| ISLETS | Atolls. |
| ISLETS | Atolls |
| REEFY | Like atolls |
| ISLET | Atoll's relative. |
| REEF | Atoll's makeup |
| LAGOON | Atoll's contents |
| ISLETS | Small atolls |
| LAGOONS | Centers of atolls. |
| CORALS | Builders of atolls |
| CORALS | Animals that build atolls. |
| MILI | One of the Marshall atolls. |
| CORAL | What atolls are made of. |
