Related Clues:
- Conceal officer's hint about Germany
- Conceal lines about c-crossword element being incomplete
- Defensive structure, maybe improvised
- Wall
- Close up (an orifice or passage)
- Erected defence as writer's protecting villain
- Officer commanding hundreds in the light to stop up
- Improvised obstruction
- Block progress of scoundrel grabbed by playwright
- Improvised fence
- Defend nasty piece of work penned by author
- Pub, notice, has food around — one can't get through it
- Block daughter entering some of crossword after company turns up
- Obstacle bounder put in the way of 1 ac
- Cut or shut off