Possible Clues:

• "Just say what!"
• Whatever's required, any time, our detailed changes
• Anything asked of vicar at font
• It's your eponym, no matter what
• Second person with appeal about to call for whatever's needed
• Whatever's needed to link a lot of people up, including Open University
• When you christen a child - anything goes
• And the like
• Return fixture football team to play at last, no matter what
• I may tune out boxing ring – whatever!