| Rating | Solver | Clue |
|---|---|---|
| CLEANEST | Purest | |
| CLEAREST | Purest | |
| QUINTESSENTIAL | Of the nature of a quintessence; purest. | |
| EMPYREAL | Formed of pure fire or light; refined beyond aerial substance; pertaining to the highest and purest region of heaven. | |
| TONIC | ...Dr. James Rush (1833) " from their forming the purest and most plastic material of intonation." ... | |