Enquiry (8)
I believe the answer is:
question
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">enquiry</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for question that I've seen before include "Pump" , "Grill" , "See 17" , "Query" , "Poser" .)