Hughes believes he can bring the best from the 27-year-old's passing ability in the same way he once did with David Bentley at Blackburn.
Hughes said: "I'm looking forward to working with Charlie day in day out and it will be an exciting time.
"We'll get to know each other on a number of levels. I know his quality and he can affect a game in all manner of ways by the strength of his ability.
"It's about getting the best out of him and finding the best position for him to be most effective."