| Answer | Crossword Clue |
|---|---|
| DENSER | More thickheaded |
| DENSE | Thickheaded |
| OBTUSE | Thickheaded |
| OPAQUE | Thickheaded |
| DUMB | Thickheaded |
| DENSE | Thickheaded. |
| MORONIC | Thickheaded |
| BOVINE | Thickheaded |
| DIM | Thickheaded |
| DODO | Thickheaded one |
| DIMWIFE | Thickheaded spouse? |
| CLODS | Thickheaded sorts |
| STUPIDLY | In a thickheaded way |
| UPTAKE | Slow on the ... (thickheaded) |
