In prison (6,4)
I believe the answer is:
behind bars
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">in prison</span>' is the definition.<br/ ><span class="explanation-format__explanation">(behind bars means locked away in prison)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for behind bars that I've seen before include "Incarcerated" , "Where alcohol is kept" , "Where to find convicts" , "Where landlords might be" , "Responsible for some music" .)