| Answer | Crossword Clue |
|---|---|
| ISLES | They may form a chain |
| KEYS | They may be kept on a chain or a ring |
| CATENATE | Form into a chain. |
| CATENATE | Form into a chain |
| RIBS | They form a cage |
| ARCS | They might form a circle |
| URALS | They form a wall for Siberia. |
| EXTRAS | They form a crowd in Hollywood |
| MOLDSPORES | They can form in a damp basement |
| ICEDAMS | They form when water freezes at a roof's edge |
