| COAGULANTS | Substances that thicken liquid (especially blood) (10) |
| AERATE | Oxygenate, especially blood |
| KITCHEN | Thicken liquid in cooking room (7) |
| HUMECTANTS | Substances that absorb or helps other substances retain water (10) |
| STIMULANTS | Substances that raise levels of physiological or nervous activity (10) |
| ACTIVATORS | Substances that stimulate chemical processes, as in products added to compost heaps to initiate rotting (10) |
| HASHBROWNS | Substances that are sauteed to create some edibles? |
| ADAPTOGENS | Substances that supposedly help the body deal with stress, in alternative medicine |
| DRAINS | Pipes for carrying off surplus liquid, especially rainwater (6) |
| IMMERSION | --- heater, an electrical device for heating liquid, especially as a fixture in a domestic hot-water tank (9) |
| DIPSTICK | Graduated rod for measuring the depth of liquid, especially oil in a car's engine (8) |
| TANKER | A very large ship for transporting large quantities of gas or liquid, especially oil (6) |
| ARROWROOT | Pointer to one perhaps deep in plot that thickens |
| ACRE | Plot that thickens? |
| OKRA | Veggie that thickens gumbo |
| AMPULE | A small capsule in which measured quantities of liquids especially for injections, are sealed ready for use |
| SUMP | Receptacle in an engine into which liquids, especially lubricants, can drain to form a reservoir (4) |
| COLANDER | What is a strainer for draining off liquids, especially in cookery (8) |
| PLOT | The storyline of a film, novel or play that "thickens", according to George Villiers, 2nd Duke of Buckingham in The Rehearsal (4) |
| SOLIDS | Substances that aren't liquid or gas |
