Possible Clues:

• Type of shackle used in Oman, a clever device
• Slap the cuffs on
• Chap's left fastened in one item restricting movement
• Restraint usually seen in pairs
• Fellow holding dance, not half, upset one of two bands?
• Shackle that can be locked round the wrist
• Fellow outside prison about to get mechanical restriction
• Handcuff a salt arrested by setter
• Limb limiter
• Bloke outside can upset restraining device