Think deeply about
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">think deeply about</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ponder that I've seen before include "Reflect" , "Think carefully" , "Consider deeply" , "Muse" , "Give thought to" .)
(Other definitions for reflect that I've seen before include "Cogitate" , "Ponder; send back" , "Echo, mirror" , "Ponder or produce an image" , "Contemplate like mirror" .)