Put out of commission (7)
I believe the answer is:
disable
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">put out of commission</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for disable that I've seen before include "Deactivate" , "Make inoperable" , "Weaken" , "Put out of action" , "Stop working" .)