I'm sorry, but without specific details on the person you are asking about, I am unable to provide a short description of Alexandra Kennington. The name isn't immediately recognizable as a prominent public figure or widely known author as of my knowledge cutoff in 2023. It's possible that she might be a less well-known or emerging author, or the name might belong to a private individual or professional in a different field. If Alexandra Kennington has recently come into public awareness, or if you have more information about her works or background, please provide additional context so that I may better assist you.