Disclosing (9)
(Other definitions for revealing that I've seen before include "Giving away" , "to be telltale" , "Exposing" , "Disclosing" , "Divulging" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">disclosing</span>' is the definition.<br/ ><span class="explanation-format__explanation">('divulge' can be a synonym of 'disclose')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Another definition for divulging that I've seen is " Disclosing, revealing".)