I don't think I have met Clara in the old game.

Who was she?
Sex shop employee who seemed super excited to see Tara and even offered Viv a job. Given Tara's habit of not involving herself with mortals as anything more than temporary amusement, Clara seems to be a different case. It's my headcanon, with her name being similar, that they may be related. It was implied by the reporter that there are more mythical creatures in New Amsterdam, than just Tara.
The catholic church once painted muses to be just another form of demon. They would stoke the fire in people and feed on their passion. (Something Tara admitted to enjoying and it would make sense why Clara works in a sex shop if she was one as well.)