5a - rude monsters grabbed the devils (6) - ?????s
10a - Verne novel about drug will surface (6) - ?????r
14a - They may be finished off by fliers (5,5) - ?a??? ?????s
23a - List useless part (8) - ?????i??
25a - Prepare the endgame (8) - ?????b??
27a - Laws of time figures included (8) - ?????d??