Swallow up (6)
I believe the answer is:
engulf
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">swallow up</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for engulf that I've seen before include "Immerse, cover completely" , "Inundate" , "Absorb, immerse" , "Flood" , "Completely overwhelm" .)