| PONTCYSYLLTE | The ____ Aqueduct and its section of the Llangollen Canal are a Unesco world heritage site |
| TELFORD | Nicknamed the Colossus of Roads by Robert Southey, a builder of canals, churches, roads, aqueducts and a number of bridges including one spanning the Menai Strait (7) |
| ORION | Preserved D1566, on the Llangollen Railway (5) |
| PAPER | Its sections start each theme answer |
| ERIE | Tribe for which a lake and canal are named |
| OFFALY | Shannon and Grand Canal are in this county (6) |
| INNEREAR | Where the semicircular canals are to be found |
| LEINSTER | Grand and Royal Canals are in this Irish province (8) |
| CLEANASAWHISTLE | Very clear signal needed after damaged canals are emptied (5,2,1,7) |
| CYMRU | Snowdon, The Gresford Bells and Llangollen are just three of the Seven Wonders located in this Celti |
| CHIRK | Town near River Ceiriog, with Llangollen canal aqueduct (5) |
| RODEN | Shropshire river near Llangollen Canal (*drone) (5) |
| CORWEN | Town on the Dee, west of Llangollen (*no crew) (6) |
| BRIDGE | An aqueduct, bascule, clapper, ponceau, series of stepping-stones etc spanning an obstacle such as a moat or river; or, a connecting part, such as the nose of a pair of specs (6) |
| RIVER | It flows through Llangollen and Chester (5,3) |
| NIMES | A city in Southern France; the location of Roman remains including an amphitheatre and the Pont du Gard aqueduct (5) |
| DEE | Llangollen is on this river (3) |
| WELSHRABBIT | Lagomorph from Llangollen? |
| BERWYN | Llangollen Railway station (6) |
| QANAT | Named for the Arabic word for 'channel', it refers to a system of transporting water from a water well to the surface using an underground aqueduct |