| COLLINS | Wilkie, author of The Moonstone (7) |
| WILKIECOLLINS | Author of The Moonstone |
| CUFF | What is the name of the police sergeant in Wilkie Collins' The Moonstone? (4) |
| SERGEANTCUFF | The detective in The Moonstone by Wilkie Collins |
| RACHELVERINDER | Character in the Wilkie Collins novel 'The Moonstone' (6,8) |
| CRYSTAL | From the Greek for "ice, frost", an array of atoms forming a polyhedral solid, such as a diamond, moonstone, piece of rock salt or a snowflake (7) |
| WILKIE | Author of 1868 novel The Moonstone (6,7) |
| EMERALD | Gem dealer confused over what's on top of moonstone (7) |
| FELSPAR | Forming some 60 per cent of Earth's crust, a mineral whose gem varieties include amazonite, aventurine, labradorite, moonstone and sunstone (7) |
| OPALINE | Like moonstones |
| INWHITE | The ---', 1860 novel by Wilkie Collins (5,2,5) |
| FELDSPAR | Constituting around 50 per cent of Earth's crust, any of various rockforming minerals including amazonite, labradorite and moonstone (8) |
| MOONSTONE | Name of the diamond in a 1868 novel by The Woman in White author Wilkie Collins; or, a gem in the feldspar group thought to bring good fortune (9) |
| ADULARIA | A feldspar mineral known as moonstone when displaying an opalescent play of colours (8) |
| ALEXANDRITE | A dark green mineral which, along with pearl and moonstone, is the birthstone for June (11) |
| GEMS | Sunstone and moonstone, e.g. |
| GEM | Garnet, emerald & moonstone for starters (3) |
| STATEGEM | Moonstone, for Florida |
| OPALESCES | Is like a moonstone |
| LOUIS | Mount St. ___ Moonstone (Ski resort in Coldwater, Ontario) |
