1: Change order: Raise scope (9)
5: Anchors in peat bogs (5)
8: Smokey's threat turning up deep in northern parts (5,4)
10: Fish in sea initially react to heat, perhaps (5)
11: Sister gets nothing, we hear (3)
13: Bobbed beneath in playful attempt to drown journalist. (6, 5)
15: Quiet floor decoration is a sign of indifference (5)
16: Relative takes funny pose on glass bridge? (9)
17: Groom and a bride -- utterly thoughtless (5-4)
19: Brings home vases, reportedly (5)
22: Invention to trick four into a stupor (11)
23: One may be a very long time (3)
24: Famous pianist's inclination for vocalizing (5)
25: Firework for Kennedy ends right in a hollow part (9)
29: Reads novel for loved ones (5)
30: Cuts in hospitals cause reorganisation of top trauma. (9)