| RADON | Artist and lecturer producing toxic gas |
| STANDTRIAL | Corrupt artist and lecturer have to face justice (5,5) |
| KELLER | Helen ..., US writer and lecturer who was both blind and deaf (6) |
| HELENKELLER | American author and lecturer who was blind and deaf from infancy (5,6) |
| SAMUELCLEMENS | Real name of the author, publisher and lecturer who created Tom Sawyer and Huckleberry Finn (6,7) |
| LEARNER | Student and lecturer to make most of time (7) |
| HEDONIST | Bon viveur and lecturer involved in robbery (8) |
| TILER | Craftsman and lecturer in row (5) |
| DECORATOR | Interior designer and lecturer behind at Christmas time (9) |
| TOAFAULT | Excessively tense about yob and lecturer, discretely |
| COLLECTOR | One who gathers colonel and lecturer (9) |
| MELBOURNE | This writer and lecturer, prefacing book on our Tyneside PM of former days (9) |
| NOAMCHOMSKY | American linguist, cognitive scientist, political activist, author, and lecturer who joined the staff of the Massachusetts Institute of Technology in 1955 |
| SPEAKERS | Stereo sound blasters for the orators and lecturers (8) |
| CANDLE | Source of light kept by academic and lecturers (6) |
| PHOSGENE | Which WWI toxic gas was made from carbon monoxide and chlorine? (8) |
| OZONE | A colourless, unstable toxic gas that has a pungent odour and powerful oxidising properties (5) |
| HCL | Toxic gas, to a chemist |
| CYANOGEN | Number engaged by nasty agency to produce toxic gas |
| CLUTTER | Messy accumulation of toxic gas, say (7) |
