Suggest, insinuate (5)
I believe the answer is:
imply
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">suggest</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(implying is a kind of suggesting)</span><br/ ><br/ >'<span class="explanation-format__original">insinuate</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for imply that I've seen before include "Involve - intimate" , "Express by indirect means" , "Mean" , "Insinuate, hint" , "Infer" .)