'In audible shock, boy ducks with missile around (5,4).' The answer must be SONIC BOOM, but can someone parse please? I can see the 'audible shock' bit, but where does missile fit in??
Thanks all, would never have got ICBM.
Did anyone else like the clue for 19a: Great authors rule, you might say (5,2,4), answer Right as Rain. Took me a while though.