| SERAC | Pinnacle of ice formed between crevasses in a glacier |
| SERACS | Pinnacles of ice among the crevasses of a glacier |
| ICICLE | A pendent spear of ice formed by the freezing of dripping water (6) |
| GLACIER | Mass of ice formed from snow on a mountain (7) |
| BERGSCHRUND | Crevasse formed at the head of a glacier between moving and non-moving ice, also known as a rimaye; German, 'mountain cleft' (11) |
| CREVASSE | A deep fissure in a glacier or ice sheet (8) |
| ICEFALL | Very steep part of a glacier that has deep crevasses (7) |
| FLOE | What is a field of floating ice formed on the surface of the sea, etc (4) |
| ACIERATE | Trapped in a glacier, a teetotaller appears to turn to steel (8) |
| APEX | Summit of a mountain; pinnacle of achievement; or, a clipping point of the racing line in motorsport (4) |
| SEMITIC | Mist and ice formed in the Middle East (7) |
| RETICENCE | At the centre, ice formed in reserve (9) |
| DEADRISE | Angle formed between horizontal and boat's hull at any point (8) |
| ELBOWS | Joints formed between the humerus bones, above, andthe radius and ulna, below (6) |
| ICEMAN | Nickname given to 'Otzi', 3000-year-old figure found in a glacier in 1991 (6) |
| ICECAVE | Natural tunnel in a glacier |
| NEEDLE | Leaf of a pine tree; a slender crystal; or, a pinnacle of rock (6) |
| ECOLOGICAL | Green log with coal and ice formed (10) |
| NORTH | Regional defence alliance formed between European nations and the US after WWII, the ... Atlantic Tr |
| TREATY | Regional defence alliance formed between European nations and the US after WWII, the North Atlantic |
