| PULSAR | A rotating neutron star that emits pulses of radiation at regular intervals |
| UVULA | Radiation at college connected to a lump in the throat (5) |
| PULSARS | Neutron stars that emit regular bursts of radiation |
| SPARKLER | That which twinkles; a diamond or other scintillating gem; a glass of fizzy wine or champagne; a beer-tap nozzle; or, a hand-held firework that emits a shower of glittering particles (8) |
| MAGNETAR | A type of neutron star believed to have a very powerful magnetic field |
| MAGNETO | Electricity generator that produces pulses of alternate current (7) |
| BURNER | Part of an etna, gas cooker/jet or lamp etc that emits a flame; a censer or thurible; or, a CD-R drive (6) |
| PHOSPHOR | General term for a substance, such as the coating on a cathode-ray tube, that emits light when irradiated with particles of electromagnetic radiation (8) |
| KERR | A cell which is used for producing short pulses of light for laser experiments named after John (4) |
| ROMANCANDLE | Slow-burning cylindrical firework that emits a continuous shower of sparks punctuated by coloured balls of fire (5,6) |
| PUFFBALL | What name is given to a fungus case that emits a cloud of spores when mature? (8) |
| MASER | Device or object that emits coherent microwave radiation produced by the natural oscillations of ato |
| FELL | Knock down chap that emits a cry of pain |
| FUMAROLE | A vent in or near a volcano that emits hot gases (8) |
| GOLD | Used for bullion, coins, jewellery and medals, a precious metal thought most likely to have been produced in neutron star collisions or supernova nucleosynthesis (4) |
| PULSATOR | Neutron star, at times |
| DENSE | Like a neutron star |
| DENSEST | Like neutron stars, vis-a-vis everything else |
| NEON | Inert gaseous element that emits a reddish glow when exposed to an electric current at low pressure (4) |
| RADAR | Measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locat |