Clarkson starred in the ensemble drama "The Party" in 2017, directed by Sally Potter, for which she won a British Independent Film Award for Best Supporting Actress. The same year, she co-starred with Emily Mortimer and Bill Nighy in "The Bookshop", a period drama set in 1959 Suffolk involving two women vying to acquire a building for their own respective businesses. She also guest-starred on the fifth and sixth seasons (2017–2018) of the Netflix political drama series "House of Cards", portraying Jane Davis, a United States Department of Commerce official.