Hearing; troublesome (6)
I believe the answer is:
trying
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">hearing</span>' is the first definition.<br/ ><span class="explanation-format__explanation">('try' can be a synonym of 'hear')</span><br/ ><br/ >'<span class="explanation-format__original">troublesome</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for trying that I've seen before include "responsibility of the first Baron Jeffreys of Wem" , "undertaking" , "work on bench" , "Doing one's best - annoying!" , "distressing" .)