Overweight landings are permitted for 320 as there is no fuel-dumping device.
320 with suspected tyre damage only should only return after burn-off to MLW (64.5 or
66T). A fly-by will help in assessing if tyre(s) are in fact damaged or not, wx permitting.
If immediate return is required for a SECOND contingency (eg suspected tyre damage and
uncontrollable engine fire/cabin fire/medical emerg/extreme fuel leak etc) - its a command
judgement call.
I'd have every ice-cream truck out there I had to return overweight with busted tyre(s) and
an uncontrollable fire or leak, and use the closest longest piece of bichumen available.