Put in jail (8)
I believe the answer is:
imprison
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">put in jail</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 "Put in gaol" , "Send down" , "Purveyor of blooms" , "Confine" , "put in detention" .)