Cotton on (4)
(Other definitions for see that I've seen before include "Witness; ensure" , "Diocese of a bishop" , "Bishops office" , "Observe the bishop's jurisdiction" , "Glimpse; get" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cotton on</span>' is the definition.<br/ ><span class="explanation-format__explanation">(both can mean to realise something)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for twig that I've seen before include "Latch on" , "Only a minor branch" , "Finally understand" , "Small piece of tree" , "Small part of tree - suddenly understand" .)