| Rating | Solver | Clue |
|---|---|---|
| ARCANE | Secret, mysterious | |
| ESOTERIC | Secret, mysterious | |
| USAGE | Mysterious agent’s secret habit? | |
| ESOTERICS | Mysterious or hidden doctrines; secret science. | |
| HIDDEN | From Hide. Concealed; put out of view; secret; not known; mysterious. | |
| INITIATE | To introduce into a society or organization; to confer membership on; especially, to admit to a secret order with mysterious rites or ceremonies. | |