Tact (9)
I believe the answer is:
diplomacy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tact</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that diplomacy is a type of tact)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for diplomacy that I've seen before include "Skilful handling" , "Tact" , "Tactful dealing" , "Art of negotiation" , "Savoir-faire" .)