Unpleasant, as details (4)
I believe the answer is:
gory
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unpleasant as details</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 gory that I've seen before include "Grisly" , "Steeped in blood" , "Involving much bloodshed" , "Maybe gruesome" , "Involving much blood" .)