| Rating | Solver | Clue |
|---|---|---|
| CAVO | Grotto | |
| CAVE | Grotto | |
| GROT | A grotto. | |
| GROTTOES | Of Grotto | |
| GROTESQUE | Artificial grotto-work. | |
| CAVERN | Large dark grotto | |
| CAPRI | Famous Blue Grotto isle | |
| SOUTERRAIN | A grotto or cavern under ground. | |
| GROTTO-WORK | Artificial and ornamental rockwork in imitation of a grotto. | |
| LUPERCAL | A grotto on the Palatine Hill sacred to Lupercus, the Lycean Pan. | |
| CATACOMB | A cave, grotto, or subterraneous place of large extent used for the burial of the dead; -- commonly in the plural. | |