Astounding, awe-inspiring (7)
I believe the answer is:
amazing
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">astounding</span>' is the first definition.<br/ ><span class="explanation-format__explanation">('amaze' can be a synonym of 'astound')</span><br/ ><br/ >'<span class="explanation-format__original">awe-inspiring</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for amazing that I've seen before include "description of Grace?" , "Astounding, awe-inspiring" , "Very impressive" , "Awesome, astounding" , "Excellent; surprising" .)