| MCADAM | John ___, Scottish road surface engineer (6) |
| BUCHAN | John ___, Scottish author of novels including The Thirty-Nine Steps (6) |
| HANNAH | John _, Scottish actor whose TV credits include Rebus and New Street Law (6) |
| NAPIER | John ___, Scottish mathematician |
| MCGINN | John ___, Scottish international midfielder who joined Aston Villa from Hibernian in 2018 |
| ARBUTHNOT | John ___, Scottish physician and writer known for a 1712 satirical pamphlet featuring the character John Bull (9) |
| KNOX | John ___, Scottish Presbyterian founder (4) |
| SESSIONS | Series of sittings; John ___, Scottish comedian |
| GALT | John ___, Scottish author of novels The Ayrshire Legatees and Annals of the Parish (4) |
| MUIR | John ___, Scottish-born naturalist, botanist, zoologist and author, credited with the creation of the US's National Parks (4) |
| BALLANTYNE | John ___, Scottish-born businessman who in 1872 bought New Zealand's first department store, established 1854 (10) |
| COBBLE | Repair part of the road surface (6) |
| CAMBER | Curve of the road surface (6) |
| TARMAC | A cart crashes hiding bit of motorway road surface (6) |
| MORTAR | Mostly better road surface binder (6) |
| GRAVEL | Small stones used as road surface (6) |
| TARGET | Road surface to achieve aim (6) |
| RETARD | Delay report of having received new road surface? |
| ADVERSECAMBER | Incorrect tilt of road surface (7,6) |
| MACADAM | Form of road surface named after Scottish inventor (7) |
