Trying experience (6)
I believe the answer is:
ordeal
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">trying experience</span>' is the definition.<br/ ><span class="explanation-format__explanation">(an ordeal is a difficult or trying experience)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ordeal that I've seen before include "Tribulation" , "Ancient form of trial" , "A tough time in Laredo" , "Severely trying experience" , "Horrible experience" .)