1: Cheaper oil, gas distributed in Island chains (13)
8: Later round without an opponent (3)
9: or creates new mobile sound system (3,6)
11: Might signal elbow exercise with this? (7)
12: Curse the watcher hiding terrible evil within. (3)
13: Child is to depart, finally (3)
14: Watering devices found in run-down orange sheds (6, 5)
16: E.g., told story about cave-men (11)
20: Short bloke quietly escaped seaweed (3)
22: Sounds like Brazilian soccer player may make a good fisher (7)
23: Dogged pamphlet for the auditor (7)
24: One going to a higher court backing Father George, cardinal worker (9)
25: A representative may be a scamp (3)
26: Grave study: code-breaking? (13)