| BARIUM | ___ meal, a mixture containing a white compound opaque to X-rays (6) |
| BARIUMMEAL | Substance, opaque to X-rays, swallowed by a patient (6,4) |
| SALTMINE | Deep pit containing a white substance (4,4) |
| SQUARE | A regular quadrilateral; a quartile aspect; the figurative "shape" of a full, balanced meal; a mortarboard; a carpenter's measure; or, one of a chessboard's black/white spaces (6) |
| PICNIC | Word, roughly translating as "peck or nibble at a meal" or "a trifle to eat", for an alfresco meal, a packed lunch or a shared feast in the country (6) |
| SPHINX | Penny breaks tibia leading to X-ray, one hard to decipher (6) |
| FARINA | Meal a Six Counties service sent up (6)(6) |
| SLURRY | Semi-liquid mixture containing manure, cement or coal, for example (6) |
| CIRCLE | On a graph, the full set of solutions to x squared plus y squared equals a constant value |
| SLAPUP | "They did us a ____ meal, [...] and then we thought, what do we do tonight?" (Description of VE day in the Outer Hebrides) |
| FAMILY | *___ meal, or staff meal |
| KOSHER | _ meal |
| ONEPOT | ___ meal (recipe requiring minimal kitchen cleanup) |
| BERYLLIUM | Element used for making X-ray tube "windows", as it is translucent to X-rays |
| ANGSTROM | Worry over radiation initially given to doctor returning to X-ray unit (8) |
| BACTERIUM | Bug etc turns up in contents of meal prior to X-ray |
| IRRADIATE | Expose to X-rays |
| ROE | Units of exposure to X-rays |
| MRIS | Alternatives to X-rays (abbr.) |
| ARCHAEOPTERYX | An old bird's cheaper to X-ray, surprisingly! (13) |
