Breaking free (8)
I believe the answer is:
escaping
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">breaking free</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for escaping that I've seen before include "Getting free" , "Breaking free" , "Breaking out of confinement" , "Getting away from confinement" , "Fleeing" .)