| TENBY | Seaside resort in Pembrokeshire, Wales housing a walled castle (5) |
| STDAVIDS | City in Pembrokeshire, Wales; the smallest in the United Kingdom (2,6) |
| SAUNDERSFOOT | Seaside resort in Pembrokeshire, north of Tenby (12) |
| CONWY | Walled market town and resort in N Wales housing a 13th-century castle and church (5) |
| MOTTE | In Norman England, a hillock surmounted by a lord's wooden keep and surrounded by a walled bailey (5) |
| SIEGE | Attack on a walled city, maybe |
| SWANSEA | City and holiday resort in South Wales housing a castle (7) |
| DYFED | It was Cardiganshire, Carmarthenshire and Pembrokeshire (5) |
| EVANS | Luke _, star of the 2020 crime miniseries The Pembrokeshire Murders (5) |
| TEIFI | Pembrokeshire river (* if tie twisted) (5) |
| BEAUMARIS | Resort town on the Isle of Anglesey, Wales, housing a castle |
| LUDLOW | Market town in Shropshire near the border with Wales housing a medieval castle |
| DENBIGH | Market town in the Vale of Clwyd, N Wales housing a ruined castle (7) |
| SOLVA | Sounds like one who's answered the clue 'Village on the Pembrokeshire Coast Path'! (5) |
| WELSHCORGI | Cattle herding dog which originated in Pembrokeshire (5,5) |
| CAREW | One of the 20 Across 22 Across, in Pembrokeshire (5) |
| FISHGUARD | Coastal town in Pembrokeshire and ferry port to Rosslare in Ireland (9) |
| SEALYHAM | A short-legged, wiry-coated terrier first bred in Pembrokeshire (8) |
| MERTHYRTYDFIL | Town in Mid Glamorgan, Wales, housing Cyfarthfa Castle |
| TYDFIL | Town in Mid Glamorgan, Wales, housing Cyfarthfa Castle (7,6) |