| BELOWZERO | Less than nothing, as far as temperature is concerned (5,4) |
| LOWSEASON | Winter as far as temperatures are concerned (3,6) |
| SAOTOME | Island capital - it's nothing as far as I'm concerned |
| HALFALOAF | According to an adage, amount which is 'better than nothing' (4,1,4) |
| OPENHOUSE | Hospitality for all in old luxury flat as temperature falls |
| ENTOURAGE | Followers spur on as temperature becomes cold (9) |
| ITSASTART | "Better than nothing, I guess" |
| ECTOTHERM | Any animal whose body temperature is regulated by the environment rather than internal processes (9) |
| HEATDEATH | Condition of a closed thermodynamic system in which temperature is uniform throughout and no energy is available to do work; a postulated final state of the universe (4,5) |
| DISHONEST | Gorgeous creature taking one's temperature is deceptive (9) |
| AFTERNOON | When body temperature is typically highest |
| BYDEGREES | How temperature is measured gradually (2,7) |
| FANTASTIC | Cool orangeade's temperature is almost cold (9) |
| CAMPSTOOL | You can sit on it if current temperature is cool outside |
| THIN | So slight as to seem less than nothing? |
| NEGATIVE | Less than nothing, for example, found in an oyster (8) |
| GEEZER | Goodness less than nothing for bloke |
| NOTCH | Nick gets less than nothing out of Charlie! |
| HINT | A mere touch, possibly less than nothing (4) |
| NONZERO | More or less than nothing (3-4) |
