Excites, troubles (8)
I believe the answer is:
agitates
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">excites</span>' is the first definition.<br/ ><span class="explanation-format__explanation">('agitate' can be a synonym of 'excite')</span><br/ ><br/ >'<span class="explanation-format__original">troubles</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(agitating is a kind of troubling)</span><br/ ><br/ ></span>
(Other definitions for agitates that I've seen before include "Disturbs, often politically" , "Upsets" , "Tries to stir up public opinion" , "Disturbs or stirs up political trouble" .)