Lock up (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lock up</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 imprison that I've seen before include "shut up" , "put in detention" , "Put behind bars" , "Lock up" , "Put in jail" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lock up</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for intern that I've seen before include "22 [IMPRISON]" , "Confine the hospital resident" , "Official language of Pakistan" , "Confine the hospital doctor" , "House officer" .)