In use (11)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">in use</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 operational that I've seen before include "running" , "working satisfactorily?" , "In working order" , "Ready for action" , "Ready for use" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">in use</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for occupied that I've seen before include "Lived in" , "Employed" , "at work" , "Filled or in use" , "Captured" .)