Apprehending (9)
I believe the answer is:
arresting
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">apprehending</span>' is the definition.<br/ ><span class="explanation-format__explanation">('arrest' can be a synonym of 'apprehend')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for arresting that I've seen before include "remarkable" , "Taking into custody for being eye-catching?" , "Running in" , "Police work" , "Police officers are doing it regularly" .)