Using speech (4)
I believe the answer is:
oral
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">using speech</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 oral that I've seen before include "See 18" , "Ant; tourist (dial.)" , "Kind of exam" , "Type of exam" , "Relating to the mouth - exam" .)