| REAGENTS | Substances used in chemical analysis or other reactions (8) |
| FEELERS | Sensory antennae of insects; palpi of spiders; tentacles of octopuses; or, tentative remarks ventured to gauge or probe others' reactions (7) |
| REAGENT | Substance used in chemical analysis |
| MORDANTS | Substances used in dyeing |
| BURET | Lab apparatus used in chemical analysis to measure the volume of a liquid or gas. |
| UNGUENTS | Soft greasy or viscous substances used as ointments or for lubrication (8) |
| SPECIMEN | A typical example; a remarkable type; a sample of blood, plasma, tissue etc, for diagnostic analysis; or, derogatorily, a person or animal (8) |
| TESTTUBE | Item used in chemical reactions - stone tub with external support (4,4) |
| CYANOGEN | Poisonous gas with an almondlike odour that has been used in chemical warfare (8) |
| PEPTIDES | Banned substances used by Stephen Dank at Essendon and Cronulla (8) |
| STEROIDS | Banned substances used by athletes to enhance performance |
| ENUMBERS | Codes for substances used as food additives (1,7) |
| PLACEBOS | Inactive substances used for comparison during medical trials |
| MATERIAMEDICA | The study of drugs, or the substances used in them |
| AGARS | Substances used in bacteria cultures. |
| OILS | Essential - - -, substances used in aromatherapy (4) |
| ESSENTIALOILS | Distilled substances used in aromatherapy (9,4) |
| MEDICINES | Substances used in the treatment of diseases, etc (9) |
| DYES | Substances used in the textile industry |
| ANALYST | One skilled in chemical analysis (7) |
