The Hostess: So Clara is so important to your doctor’s arc. And now that he has lost her, how was that going to affect him going forward?

Peter: Oh it’s just gonna be so difficult. It’s so hard to get up in the morning in their TARDIS, trying get out there – I think, well, he has forgotten all about her, I’m afraid.

Jenna: Clara Who?

Peter: So… I think the thing about the doctor is actually quite mysterious, hence the name “Doctor Who”. And I’m not sure how successfully Clara was able to wipe his mind. And in fact I just did a – I was about to tell you something that I can’t tell you now.

…

Jenna: It’s something to look forward to.

Peter: I just shot something that… Clara was still there in them. (??)

(The Hostess then asked whether Clara’s affect still lingered even if she was forgotten.)

Peter: Her affects have been left line around the TARDIS – Her slippers, her…

Jenna: Chalkboards.

Peter: …her makeup’s all over the place. You will have to wait and see.