Starz has released a new featurette discussing the witch and superstition elements of Outlander. It is very true that Claire has been suspected of being one in addition to a spy from the moment she traveled through the stones. She is different and that scares people, especially in that time period. The featurette has interviews with Ronald D. Moore, Caitriona Balfe, Lotte Verbeek, and Nell Hudson.
Source: Starz