| Answer | Crossword Clue |
|---|---|
| LEVEL | Surveyor's instrument |
| ALIDADE | Surveyor's instrument |
| TRANSIT | Surveyor's instrument |
| ALIDADE | Surveyor's instrument. |
| COMPASS | Surveyor's instrument. |
| ALIGNER | Surveyor's instrument. |
| YLEVEL | Surveyor's instrument |
| ALIDADE | Surveyor's instrument for a laddie |
| circumferentor | a surveyor's angle-measuring compass instrument |
| gradienter | a surveyor's instrument for determining gradients |
| circumferentors | CIRCUMFERENTOR, a surveyor's angle-measuring compass instrument |
| gradienters | GRADIENTER, a surveyor's instrument for determining gradients |
