Engrossing, riveting (8)
I believe the answer is:
gripping
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">engrossing</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that engrossing can be written as gripping)</span><br/ ><br/ >'<span class="explanation-format__original">riveting</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that riveting can be written as gripping)</span><br/ ><br/ ></span>
(Other definitions for gripping that I've seen before include "as one's vices may be" , "Sensational" , "Holding tightly" , "Grasping" , "Suspenseful" .)