Unbind (6)
I believe the answer is:
loosen
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unbind</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for loosen that I've seen before include "Make less tight, slacken" , "Undo a little" , "relax or tear apart" , "Untie, relax" , "Relax the tension" .)