| ASPHALT | Black substance mixed with gravel and used in road-surfacing and roofing (7) |
| TAR | Dark sticky substance obtained from organic matter and used in road-making (3) |
| CEMENT | Substance that can be mixed with gravel, sand and water to make concrete (6) |
| CHEW | Platypuses do not have teeth, they scoop up food with gravel and mud which then helps them to ___ their meal |
| BITUMEN | Tarry substance used for road surfacing and roofing (7) |
| RIDDLES | Coarse sieves - as for sifting gravel, and puzzling games! (7) |
| CATSEYE | Retro-reflective safety device used in road marking (4,3) |
| BLUEMETAL | Crushed rock used in road surfacing (4,5) |
| GUMARABIC | Gluey substance mixed with a magic rub (3,6) |
| ELECTUARY | Medicinal substance mixed with honey or syrup (9) |
| ANTIMONY | Substance mixed with soot to make kohl (8) |
| ASBESTOSIS | Long-term lung condition caused by prolonged exposure to a whitish material once used in buildings for insulation, flooring and roofing (10) |
| BOULDERCLAY | Unstratified soil deposited by a glacier, comprising many particles, from sand (and smaller) to gravel and rocks, mixed together (7,4) |
| TARMAC | Car mat damaged in road surfacing material (6) |
| ADDITIVE | Substance mixed into something to improve or preserve it (8) |
| MIXTURE | Two or more substances, mixed but not bonded (7) |
| CONCRETEMIXER | Device used for mixing cement, sand, gravel and water to make concrete (8,5) |
| PAN | Shallow bowl used by a prospector for separating gold deposits from gravel and earth (3) |
| NINASIMONE | Singer who said, "Sometimes I sound like gravel, and sometimes I sound like coffee and cream" |
| AVON | Our neighbour's river has gravel and stones in the middle |
