"Should I mention CDing on my dating profile ?? "
Sure if you want the whole world to know. Remember, once you let it out, you can't take it back.
Unless you spend most of your time dressed as a woman, I would say "no". Meet someone first and if it seems like things are working out, you will have time to tell her (I assume) about your hobby.
Have you ever considered dating someone you met in real life? At work, at the store, at a dance or club, etc.
