| CRYOGENICS | Study of phenomena at very low temperatures (10) |
| DEEPFREEZE | Store at very low temperatures (4-6) |
| DEEPFROZEN | Stored at very low temperatures |
| CRYOGENY | The study of physical properties of matter at very low temperatures (8) |
| SUPERCONDUCTIVITY | Property of zero resistance at very low temperatures |
| CRYOGENIC | Relating to the behaviour of materials at very low temperatures (9) |
| SUPERCONDUCTOR | Material exhibiting no electrical resistance at very low temperatures |
| FREEZERS | Places for preserving foods at very low temperatures (8) |
| ONTHECHEAP | Revolutionary in phaeton travelling at very low cost (2,3,5) |
| ICEAGES | Last member of foursome, locked in cage, is tortured with long periods of very low temperatures (3,4) |
| CRYOGEN | Substance used to produce very low temperatures |
| ICEAGE | Long period with very low temperatures (3,3) |
| CRYOTHERAPY | Medical treatment applying very low temperatures (11) |
| RAREFIED | (Of gas) at very low pressure |
| ICY | Such conditions in very low temperature at end of January? |
| CYMOUS | From the Greek for "wheel", a word for revolutions of phenomena or time; orbits; sequences of life stages; biorhythms; or, velocipedes (6) |
| CYCLES | From the Greek for "wheel", a word for revolutions of phenomena or time; orbits; sequences of life stages; biorhythms; or, velocipedes (6) |
| IA | Marine layer phenomena, at times |
| MAYA | The world of phenomena (4) |
| HALOS | Lunar phenomena, at times |
