Characterised by pain or suffering (9)
I believe the answer is:
torturous
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">characterised by pain or suffering</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for torturous that I've seen before include "Inflicting pain cruelly" , "Characterised by pain or suffering" , "causing much pain" .)