Possible Clues:

• Sudden pain in side after exercise
• See 3
• Tack; pain in side
• So wing, by the sound of it, inside, perhaps
• Disney character initially called Experiment 626
• Sharp spasm of pain in the side
• In side or in time for a sewer
• It brings the saint up to scratch to be sewn in it
• That's enough to irritate a saint, whether in side or in time
• Perhaps a sewer might start from scratch at the bottom of this