Sneakiness (7)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sneakiness</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 stealth that I've seen before include "Cautious and surreptitious action or movement" , "Cats display this" , "Slyness" , "Avoiding detection by moving carefully" , "Quiet or secret way of behaviour" .)