What's the noun for transvestism? Here's the word you're looking for.
transvestite
A person who sometimes wears clothes traditionally worn by and associated with the opposite sex; typically a male who cross-dresses occasionally by habit or compulsion.
“The fashion show featured a diverse range of models, including a confident and stylish transvestite who effortlessly rocked both feminine and masculine attire.”
“These days things are a lot better if only because there are several zoos and a choice of transvestite cabarets.”
“I sat down next to a local transvestite who offered me some chillum to smoke.”
“The documentary explored the various aspects of transvestism, shedding light on the personal experiences and societal challenges faced by individuals who engage in cross-dressing.”
“It is a beautiful opera, full of lush arias, sensuous waltzes, and an intriguing amount of transvestism.”
“As I have already pointed out, transvestism in either women or men by no means necessarily involves inversion.”