Summon by a gesture (6)
I believe the answer is:
beckon
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">summon by a gesture</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 beckon that I've seen before include "Summon with finger gesture" , "Summon by sign" , "Gesture to approach" , "Make signs to summon" , "Gesture closer" .)