A woman who says she was groomed by David Walliams tells Newsnight she is incensed at the environment that she says allowed it to happen. And Lilly Creightmore says too many powerful men are still getting away with it. Will change happen? Walliams denies he was a sexual predator. Interview by Victoria Derbyshire. If you have been affected by the contents of the interview you can visit BBC Action Line: www.bbc.co.uk/actionline/