Ah yes. I had a similar concern that it would not be clear that the wheel goes clockwise, as the letters on the bottom of the wheel would appear to go in reverse. I had a lot of Twitch streamers play the game and thankfully that wasn't an issue. I did consider having in addition to a wheel a horizontal text box below that would show what had been submitted but I thought it might clutter and confuse the UI a bit more.
This is a mockup I put together quickly to demonstrate:

With the list of words it also took me a long time to find a decent one. First day I worked with this which had 466k words, many of them slang, outdated or abbreviations. The one I use now has 172k words which is much better (specifically used for word games). I removed a few hundred words that were less than 3 characters but the tricky part was removing all the profanity and proper nouns which involved finding other filters online and a lot of manual work.