5 D No second class edge to the arena (4)??n?
6 D Monk to fuss round religious head (7) ??o???r
7 D Diagram which artists displayed (5) ??a??
12 D Some quadruped I greet, as thoroughbred (8) ?e??????
14 D While in dock, set fire to property (7) ??????y
16 D Embraced clue with three D's, cryptically (7) c??????
18 D Learner charges outside and runs off (5) ????s