| Rating | Solver | Clue |
|---|---|---|
| DERIVED | Obtained from a source | |
| FIRST-HAND | Obtained directly from the first or original source; hence, without the intervention of an agent. | |
| ISATIN | An orange-red crystalline substance, C8H5NO2, obtained by the oxidation of indigo blue. It is also produced from certain derivatives of benzoic... | |
| SUINT | A peculiar substance obtained from the wool of sheep, consisting largely of potash mixed with fatty and earthy matters. It is used as a source of potash and also for the manufacture of gas. | |
| INDICAN | A glucoside obtained from woad (indigo plant) and other plants, as a yellow or light brown sirup. It has a nauseous bitter taste, a decomposes ... | |