| BITETHE | (& 4-down) Chew fine particles or die (4,3,4) |
| ATOMISE | Convert into fine particles or droplets |
| LAY | With 34-Down, chew out |
| SCENERY | What 1-Down chews |
| DONTMENTION | (& 4-down) Basil line needs mint, lavender, marrow, with down-to-earth salad (4,7,3,3) |
| FLUX | Rate of the flow of particles or energy through a specified area; or, the measure of the electric field through a given surface (4) |
| SPARKLE | Word for glitter, scintillating vivacity or wit, emission of small fiery particles or the appearance of "fizz" in champagne or pop (7) |
| SPARKS | Fiery or glowing particles; or, a nickname for electricians (6) |
| STARDUST | Cosmic particles or presolar grains remaining from supernovae explosions; distant astral bodies appearing as a cloud; biopic about David Bowie; or, romanticism (8) |
| INDIVISIBILIA | Things inseparable, like subatomic particles or the Trinity |
| GRANULAR | Made of small particles or highly detailed (8) |
| GRINDS | Reduces to small particles or powder (6) |
| ATOM | Smallest elementary particle; or, by extension, a minute fragment (4) |
| SPIN | In physics, the intrinsic angular momentum of an elementary particle or nucleus (4) |
| TRACKS | Paths of ionising particles or cosmic rays as observed in cloud, bubble and spark chambers (6) |
| GOLDSTONE | Name for aventurine glass with glittering particles or spangles originally thought to be auric (9) |
| FRAGMENTS | Particles or shards (9) |
| ALPHA | Kind of particle or wave |
| ION | Particle or Ro-manian name |
| PION | Particle or small stone taken from moving part of engine |
