Manacles (9)
I believe the answer is:
handcuffs
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">manacles</span>' is the definition.<br/ ><span class="explanation-format__explanation">('handcuff' can be a synonym of 'manacle')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for handcuffs that I've seen before include "Restraining devices" , "result in restriction of movement" , "Prisoner restraints" , "Police links" .)