| MESON | Mass one's recalculated for subatomic particle (5) |
| NEUTRON | Time in nerve cell for subatomic particle (7) |
| ALUMINA | Mineral mass one's found in a moon, classically |
| MOTET | Sacred piece in mass, one for eight players, about to be dropped |
| GLUON | Virtual mass-free subatomic particle whose transmitted force binds quarks together (5) |
| QUARK | Name derived from James Joyce's Finnegans Wake for a subatomic particle with six subspecies or flavours comprising top, bottom, up, down, strange and charm (5) |
| BOSON | Higgs _; subatomic particle (5) |
| HIGGS | Subatomic particle; _ boson (5) |
| AXION | Hypothetical subatomic particle with zero spin and electric charge, thought to constitute dark matter (5) |
| HADON | Tricked! Subatomic particle has no radius |
| LETON | Reveal subatomic particle releasing power |
| ANION | Subatomic particle with a negative charge |
| REQUIEM | Soldiers composed unfinished Mass, one for the departed |
| ALCHEMIST | Aluminium mass one kept in case for a misguided metalworker (9) |
| THEROVERSRETURN | Bet was placed here, evens, with truth and error recalculated |
| REDONE | Snooker ball and its value recalculated |
| REFIGURED | Recalculated number in scarlet (9) |
| ANTONINE | Woman holding large mass, one from a Scottish wall (8) |
| GRAMMARIAN | Language specialist puts together Mass, one devoted to Our Lady (10) |
| MEATIER | More beefy mass, one consumed by consumer (7) |
