Arrange to have medicine bottle returned if no good (9)

I haven't cracked this one yet — but the brilliant team at Times for the Times have:

CURE (medicine) around (bottle) reversal of (returned) IF NO + G (good) I have feelings about the wordplay here. Technically, there’s nothing wrong with it, but if you say “reversal of X Y Z”, it feels a little unfair to have that mean Y X Z. Yes, yes, lift and separate and all that, but in this case I feel that “I must say what I mean” is being taken a bit far.