| SYSTEM | Group of elements working as a whole |
| NATIONSTATE | Attains note when working as a whole, people! (6,5) |
| TROJANHORSE | Subversive element working for the opposition (6,5) |
| HALOGEN | Any of a highly reactive group of elements (7) |
| METAL | One of a group of elements that are good conductors (5) |
| RAREEARTH | Term describing a group of elements which includes scandium, yttrium and erbium (4-5) |
| LANTHANIDES | Group of elements hasn't lead in, surprisingly |
| TEMPER | From "to mingle", a word for a correct or due mixture of elements originally, later for mental balance; frame of mind; or, a fit of ill-humour (6) |
| FIRE | A principle/state of combustion requiring the interaction of a "triangle" of elements comprising fuel, heat and oxygen; or, ardour, fervour or other "burning" emotion (4) |
| AMALGAM | A Spanish city lacking a mass or mixture of elements (7) |
| NICAD | Type of battery named for a pair of elements |
| HYBRID | What describes a compound of elements of different kinds (6) |
| SYNTHESIS | Putting together of elements to make up a complex whole (9) |
| WEATHERPROOF | Won't let anything in, as encompasses a number of elements one associates with philosopher (12) |
| DAVY | Sir Humphry -; discoverer of a series of elements and the compound nitrous oxide which he nicknamed laughing gas (4) |
| PIDGIN | A languago made up of elements of two or more other languoges (6) |
| ARRAY | In maths and IT, a collection of elements identified by indexes or sets of indexes |
| NEON | One of the inert gases on the periodic table of elements |
| SCANDAL | Dirt from a couple of elements (7) |
| SET | A mathematical collection of elements (3) |
