Police officers (4)
I believe the answer is:
cops
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">police officers</span>' is the definition.<br/ ><span class="explanation-format__explanation">(cop is a kind of police officer)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for cops that I've seen before include "Police (slang)" , "Panda owners" , "The police (sl.)" , "Familiar American policemen" .)