7+ hours in CLT, any ideas?

I have a 7 1/2 hour layover in CLT next month (I tried so hard to move flights but I can't).

I have pre-check so I probably can do something outside of the airport (depending on the uber situation) or if there is any place to hang out for a while in the airport, I'm open to that.

Just for context, I'm a woman in her 20s traveling solo, so safe suggestions, please.

Adding dates & times: Jan 3rd, first flight lands a bit before 1:30 PM, second flight takes off 9:25 PM. I'm also flying American if that matters.