Possible Clues:

• To show disapproval of small cake, said 'It keeps coming back'
• It could do kangaroo a bit of no good
• Aboriginal projectile
• Self-returning missile
• British head sacked from Australian test site, having no good missile
• One expected to return, after being thrown out
• An old missile that's making a comeback
• Revolver needing skill in casting to function well
• No embargo - free to supply this missile
• Recoil from report about dissolute Romeo