| LIFFEY | River which enters the Irish Sea at Dublin (6) |
| MERSEY | River which enters the Irish Sea by an estuary at Liverpool (6) |
| DERWENT | Cumbrian river which enters the Irish Sea at Workington |
| RIBBLE | River flowing from North Yorkshire through Lancashire to the Irish Sea at Lytham (6) |
| CLARENCE | New Zealand's eighth longest river, which enters the sea north of Kaikoura (8) |
| DOURO | Iberian river which enters the Atlantic below Oporto (5) |
| IMPORT | ___ duty, a tax levied on goods which enter one country from another (6) |
| OFMAN | Self-governing island in the Irish Sea at the geographical heart of the British Isles, the Isle ... |
| ANCHOR | A popular stop-off point on the Trans-Pennine Trail, Altrincham's Rope and ___ is perfectly placed on the walking and cycling route that links the North Sea to the Irish Sea (6) |
| WYRE | Lancashire river that flows into the Irish Sea at Fleetwood (4) |
| CLWYD | River that flows into the Irish Sea at Rhyl (5) |
| MARINA | River enters the sea at a harbour (6) |
| ORWELL | River in Suffolk that enters the North Sea at Harwich (6) |
| SOLWAY | Firth which lies between Scotland and England, on the Irish Sea (6) |
| ADOUR | River of S.W. France which enters the Bay of Biscay below Bayonne (5) |
| CELTIC | Sea south of Ireland, separated from the Irish Sea by the St George's Channel |
| COLWYN | ___ Bay, town and resort on the north coast of Wales overlooking the Irish Sea (6) |
| SUIR | Trout/salmon river, entering Irish Sea at Waterford (* Sir 'U') (4) |
| WITHAM | Lincolnshire river; tidal at Boston, enters The Wash (6) |
| STIGMA | The terminal part of the ovary of a flower where deposited pollen enters the gynoecium (6) |
