Indicate or designate (6)
I believe the answer is:
denote
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">indicate</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">designate</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ ></span>
(Other definitions for denote that I've seen before include "Designate" , "Mean or signify" , "Indicate, be a sign of" , "Need to (anag) - indicate" , "Be the sign or symbol of" .)