Possible Clues:

• Tie up again, as shoes
• Tighten, as sneakers
• Fix, as an old baseball glove
• Put new shoestrings in
• Do up again, as a corset
• Adjust, as skates
• Attend to, as a loose shoe
• Tighten a corset, perhaps
• Tighten, as a corset, maybe
• Tighten, say, as strings