Possible Clues:

• Act of restarting play after football has gone into touch
• Flimsy argument's blocked footballer's action
• Add haphazardly
• Add handy way to start play from the wings?
• Put ball back into play
• Player using this must be off pitch
• Mostly confusing way to restart a football game
• & 27 Across Amazingly, nephew so right not to concede defeat
• Add free; return (ball) to play