1: Hybrid language or slang with fair translation (9)
5: First Fleet diarist-cum-swimmer (5)
8: Perfect counter-spy equipment (3)
9: Wood shavings? A strange device for a banner! (9)
11: Sent one page rewritten in military lingo (11)
12: Dieter's cooking changes again (7)
14: Ramblers produce this banging noise after passing (7)
16: Cretins wrecked the water tank! (7)
17: Workers are in giant red star (7)
20: Do springs help American author? (3,6)
21: Cronkite, Bradley, and Safer's first network (3)
22: Pilot sometimes sounded more irritated (5)
23: Training some smart little monkeys (9)