I bail at 5♦ here and for me, it's crystal clear to me that if slam is there, partner gets the blame. Pard has shown a lot of minor cards, and opposite my singleton club my hand isn't quite as good as I thought it was at 3♦. I have a lot of major suit cards that needs to have coverage for, and if pard really has solid clubs, I think he would have not support belatedly at 3♦ either; I would have expected 3NT in passing. I expect pard to have a minor two suiter, but not solid.