Take some off the top (4)
I believe the answer is:
skim
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">take some off the top</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for skim that I've seen before include "Brush over" , "Remove (cream from milk)" , "Read (something) quickly" , "Remove top (of milk)" , "head" .)