Possible Clues:

• Type of eternal youth
• Exercises parent organised as play for children
• Barrie's hero
• Pantomime hero
• 'I Won't Grow Up' singer
• Pop into safe neighbourhood, primarily for play
• Gym painter decorated, ignoring current show
• Darling visitor
• Saint subject to criticism? That's child's play
• Writer including apter parts rearranged for pantomime