At least according to Emma. The Doctor didn't bring Clara here to hunt a ghost — he brought her to see if an empath would have more luck sussing out the paradox that she is. And Emma's response, that Clara is a pretty, smart, brave girl who's more afraid than she lets on, doesn't help the Doctor at all.
The only low point of this episode, in my opinion, was how cold the Doctor sounded when he told Clara, "You are the only mystery worth solving." Perhaps it's because they've only been on a few adventures together, on top of the fact that the Doctor seems to be holding back with Clara. There's a distance there because he's keeping information, pieces of a puzzle she doesn't even know exists yet, from her. And his response was a distinct reminder that he and Clara aren't quite friends yet. I have no issues with watching their friendship grow and change, but I am wary that Clara is a rebound companion for Moffat and, much like Martha, won't ever really get a chance at a strong, healthy, equal friendship with the Doctor.
Bonus! HE KEPT THE SUIT FROM The Satan Pit ETERNAL CREYS FOREVER TILL THE END OF TIME AND SPACE.