Related Clues:

• Unlace, perhaps
• Make less tight
• Untie, perhaps
• Undo, in a way
• Undo, as laces
• Untie or bend
• Untie, as shoelaces
• Let out a bit, as a belt
• Relax, as regulations
• Let out a few notches in
• Relax, as restrictions
• Make less tight, slacken
• relax or tear apart
• Undo, make less tight
• Relax the tension