| BARBICAN | Outer defence of a fortification such as a castle, typically a double tower above a gate or drawbridge (8) |
| MARTELLO | Coastal fortification such as those used against the invasion of Britain during the Napoleonic Wars (8,5) |
| TOWER | Coastal fortification such as those used against the invasion of Britain during the Napoleonic Wars (8,5) |
| CASTLE | Fortification such as those located at Beaumaris, Bamburgh and Harlech (6) |
| TURRET | Small tower above a building (6) |
| WORK | Energy transfer measured in joules; a creation such as a book, musical composition or piece of embroidery, sewing etc; or, a structure such as a wall, built as part of a fortification (4) |
| ATTENDANCE | A gate or number of people who are present at an event, such as a sports match (10) |
| BAILEY | Outer defence of a castle (6) |
| TRACE | Ground plan of a fortification; an amount of rain too small to be measured; the sum of the diagonal elements of a square matrix; or, a line marked by a recording instrument (5) |
| PORTAL | A gate or magnificent doorway; or, in fantasy fiction, a magical entrance to another dimension or location (6) |
| STILE | Type of structure (other than a gap, gate or kissing gate) provided by a landowner on a right of way (5) |
| LATCH | Piece of hardware used for fastening a gate or door (5) |
| BULWARKHEAD | Leader of a fortification? (This answer is in a trade war with Bee of the dog) |
| SLUICE | A sliding gate or other contrivance for controlling the volume or flow of water |
| ANTECHOIR | Enclosed space in a church between the outer gate or railing, and the door, of the screen |
| CASTLEKEEP | Strongest part of a fortification also known as a donjon (6,4) |
| LOCK | Section of a canal for raising and lowing boats by means of sluices and gates; or, a grapple in wrestling (4) |
| ESCALADE | Military action of scaling the defensive walls of a fortification with ladders, common in medieval times (8) |
| UPINARMS | Angered or indignant, especially in defence of a particular cause (2,2,4) |
| SAINTMICHEL | It is a rocky islet and famous sanctuary located off the coast of Normandy. Its name begins with Mont. Around its base are medieval walls and towers above which rise the clustered buildings of the vil |
