| BATTLEMENT | A parapet topping a wall of a fort or castle with openings for shooting (10) |
| POSTERN | Small gate in the rear of a fort or castle (7) |
| NDJAMENA | Capital radio presenter invested in label with openings for new apprentices (8) |
| ORS | Workplaces with openings, for short? |
| DRESSER | Theatre assistant's gown with openings for easy removal (7) |
| CRENELATED | Having a wall of a building with battlements (10) |
| BLOCKHOUSE | A sturdy fort or concrete shelter; or, a dwelling of squared logs (10) |
| EMBANKMENT | A wall of earth or stone that is built to prevent a river flooding an area (10) |
| SCONCE | A fort/earthwork defending a ford or castle gate; a screen or shelter from fire or the weather; or, a decorative wall bracket for candles or lights (6) |
| MOAT | Trench around a fort or castle |
| FOOTLIGHTS | Theatre, with openings re-allocated, spoils engagements |
| DUN | Greyish brown; a horse with a coat of this colour, combined with a black mane and tail; an importunate debt collector; a hill-fort; or, a fishing fly resembling a subimago mayfly (3) |
| HOLD | Grip; power of clasping; an embrace; a wrestler's bear hug; a fort; or, a controlling force or influence (4) |
| LEANTO | A shed attached to a wall of a larger building (4,2) |
| WINDSOR | Meanders to middle of fort - or castle (7) |
| BERM | Strip or path bordering a canal or river; or, a ledge between a parapet and its associated ditch or moat (4) |
| BAWN | An Irish word for a cattle fort or a fortified enclosure around a castle (4) |
| TURRET | Small tower projecting from a wall of a castle (6) |
| FRIEZE | A decorated band along a wall of a room (6) |
| RAMPART | Defensive embankment or wall around a fort or city |