the evolution of clothes?

There's some evidence that humans lost their fur as an adaptation for persistance hunting - our greater heat loss ability allows us to keep going for longer. Clothes, even furs, are not equivalent to having your own fur because you can just take them on and off.

No. The hypothesis in human's is that furlessness is an adaptation to long-distance running; cheatah's are sprinters.

Who said they are necessarily connected? There's no logical fallacy involved in constructing a hypothesis based on available evidence so long as one understands that it is a hypothesis.

No.Because the starting point is different. Humans evolved from apes; Hyenas are dogs. Dogs already have a pretty good heat loss system - panting; apes don't. Apes already have good manipulative skills, allowing them to make nests to keep warm at night; dogs don't. Hyena have good night vision and hunt primarily at night; humans and chimps don't.