| ANTRUM | Of or relating to a cavity or chamber in the body (6) |
| LACUNA | In biology, a cavity or depression, such as any of the spaces in the matrix of bone |
| SAC | A cavity or pouch in the body |
| HOLODECK | Virtual reality chamber in the "Star Trek" universe |
| USHERS | Officials who admit people to a hall or chamber (6) |
| EQUINE | Of, or relating to, a member of a genus that includes horses, hinnies, zebras, mules and donkeys (6) |
| VORTEX | A whirl of atoms, fluid or vapour forming a cavity in the centre (6) |
| LINEAR | Of, in, along or relating to a line (6) |
| TUSCAN | Of or relating to a specific region of Italy (6) |
| DERMAL | Of or relating to a cuticle or cuticula. |
| SALINE | Of or relating to a chemical salt (6) |
| ICONIC | Representative of or relating to a sacred image (6) |
| PALMER | John _, was married to Marilyn Chambers in the Bay (6) |
| BRIDAL | Of or relating to a wedding (6) |
| FOETAL | Of or relating to a foetus (6) |
| FEUDAL | Resembling or relating to a medieval social system (6) |
| HOLLOW | Empty, like an Easter egg, echo, oak-tree cavity or promise unkept (6) |
| LOCULE | Small compartment or chamber |
| HOTHOUSE | Type of heated conservatory- or orangery-like glass building in the form of a giant terrarium; or, a room or chamber for drying greenware (8) |
| FILLER | Material used to stuff a cavity (6) |
