| ASPHALT | Dark bituminous substance also called mineral pitch, composed mostly of hydrocarbons (7) |
| GASGIANT | Term for a large planet of low density composed mostly of hydrogen and helium (3,5) |
| STEATITE | Soft compact rock composed mostly of talc, also known as soapstone and French chalk (8) |
| BITUMINIZED | Timber or roofing, for example, treated with mineral pitch (a black, tarry substance) (11) |
| CLASSICAL | Like some music I composed, mostly with style |
| LANOLIN | Yellowish viscous substance also called wool fat (7) |
| TEARGAS | Riot control substance also called lacrimator (4,3) |
| BITUMEN | A black mixture of hydrocarbons that is commonly used to surface roads (7) |
| BENZINE | Benjamin's reportedly in Asia with mixture of hydrocarbons (7) |
| TERPENE | Any one of a group of unsaturated hydrocarbons (7) |
| METHANE | Substance also known as marsh gas (7) |
| ADIPOSE | What describes body tissue made up mostly of fat cells? (7) |
| GREYEST | Mostly of a colour between white and black (7) |
| ASHANTI | A people mostly of south central Ghana (7) |
| COALTAR | Bituminous substance used in roofing and waterproofing (4,3) |
| SIZZURP | Slangy substance also known as "purple drank" |
| GRANITE | Relative with object mostly of rock (7) |
| NEOZOIC | North East Australia has old ice, mostly of a recent geological period |
| PASCHAL | Old man's material for drawing, mostly of a religious festival |
| ALKYLIC | Ese are the hydrocarbons in which at least one C=C is present (7) |
