Related Clues:

• Loosen, as a knot
• Loosen, as laces
• Undo
• Free, in a way
• Loosen, in a way
• Break a tie?
• Prepare to remove a sneaker
• Deal with a snarl
• Remove the tether
• Remove an ascot, e.g.
• Let loose, in a way
• Get ready to take off
• Prepare to slip out of, perhaps
• Let loose
• Unfasten