Conditional release of a prisoner (6)
I believe the answer is:
parole
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">conditional release of a prisoner</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 parole that I've seen before include "Provisional release (for prisoner)" , "Early conditional release for prisoner in jail" , "Temporary release on promise of good behaviour" , "Give Al rope when he's released early" , "Release (a prisoner) on the promise of good conduct" .)