oo, ill have a go facts underrated.
Last I read the AIP there was no procedure describing a turn into the circuit area after a missed approach so that knocks (b) on the head
ENR 1.5-1.10.1 paragraph d.
Specifically states an instance where one is conducting a runway aligned approach, but is then unable to effect a landing on the associated runway. It goes on to state that circling from this position is permitted so long as weather conditions are equal to or better than those specified for circling.
My interpretation of this is that I'm able to fly an ILS, then if I decide I have too much tailwind, break off the approach, climb on track to the circling minima, and then circle from there. Whether that's a good idea or not in an A320 I couldn't say, but I don't think its illegal.
I'd copy paste the exact paragraph but im not near any regs at the moment.