| TROGLODYTE | Human cave-dweller, especially a member of a cave-dwelling tribe in prehistoric times (10) |
| WREN | Name of a "cave-dwelling" passerine songster of the genus Troglodytes, which is a diminutive farthing-worth of a bird, yet the proverbial monarch of its perch (4) |
| TROGLODYTES | Human cave dwellers (11) |
| HOPI | Pueblo-dwelling tribe |
| BANDIT | A robber, especially a member of an armed gang (6) |
| ADAMOTE | Nudist, especially a member of an early Christian sect (7) |
| ADAMITE | Nudist, especially a member of an early Christian sect (7) |
| STALAGMITE | A type of rock formation that rises from the floor of a cave (10) |
| STALACTITE | A tapering deposit of calcite hanging down like an icicle from the roof of a cave (10) |
| STONEHENGE | Gets excited about one layer in prehistoric ruin (10) |
| LEYLINE | Supposed connection between features of a landscape having scientific or magical significance in prehistoric times (3,4) |
| STELA | Upright stone slab or pillar with a commemorative inscription, traditionally used in prehistoric times as a gravestone (5) |
| CAVEBEAR | Novel by Jean M. Auel, set in prehistoric times, Clan of the ___ ___ (4,4) |
| MENHIRS | Tall, upright stones erected in prehistoric times in western Europe (7) |
| VAMPIREBAT | Cave-dwelling mammal |
| EONSFORNEWS | What it used to take to get word in prehistoric times? |
| ROOF | A thatch; the metaphoric top of the world; or, part of a cave from which a stalactite hangs (4) |
| IRONAGE | Press herb, extracting sulphur, in prehistoric times |
| CRO | Cartoon set in prehistoric times |
| PANGAEA | Vast land mass postulated to have broken up in prehistoric times to form the modern continents; from Greek, 'all earth' (7) |
