Examining (5,7)
(Other definitions for testing that I've seen before include "Subjecting to 15 ac" , "... conducting exam" , "Trying out" , "stressful" , "Examining" .)
(Other definitions for vetting that I've seen before include "Checking reliability of" , "Carefully checking" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">examining</span>' is the definition.<br/ ><span class="explanation-format__explanation">(inspecting is a kind of examining)</span><br/ ><br/ >This is all the clue.<br/ ></span>