| DUNSTANBURGH | - Castle, 14th-century fortress on the coast of Northumberland |
| BAMBURGH | Village on the coast of Northumberland housing a castle |
| FARNE | ___ Islands, group off the coast of Northumberland which house a bird sanctuary (5) |
| LINDISFARNE | Holy Island, off the coast of Northumberland (11) |
| TOWER | Historic fortress on the River Thames, the ... of London |
| TOWEROFLONDON | Royal fortress on the north bank of the Thames (5,2,6) |
| INARCE | In the fortress on the peak |
| BASTILLE | 14th-century fortress in Paris destroyed in 1789 (8) |
| KINLOCHALINE | ___ Castle, 15th-century fortress at the head of Loch Aline, Scotland, also known as Castle of Butte |
| MASADA | Ancient fortress on the Dead Sea |
| ALNWICK | ___ Castle, seat of the Dukes of Northumberland built in the 11th century (7) |
| SYONHOUSE | Built in the sixteenth century and with interiors redesigned by Robert Adam in 1762, the London home of the Duke of Northumberland (4,5) |
| SYON | - House; London home of the Duke of Northumberland with interiors by Robert Adam, used as a location for Love in a Cold Climate, Gosford Park and The Wings of the Dove (4) |
| RABAT | World capital founded as a 12th-century fortress |
| DRNO | Bond villain with a fortress on Crab Key |
| FASTNESS | Fortress on Irish rock doesnt finish with ship (8) |
| CITADEL | Stronghold / fortress on high ground protecting a city |
| RAPHAEL | Artist whose Madonna of the Pinks was bought by the National Gallery from the Duke of Northumberland for some £34.88 million in 2004 (7) |
| HOTSPUR | Harry ?, nickname of Sir Henry Percy, son of the 1st Earl of Northumberland |
| CASTLE | Fortress on board (6) |