Read quickly; type of milk (4)
I believe the answer is:
skim
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">read quickly</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">type of milk</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ ></span>
(Other definitions for skim that I've seen before include "avoid paying income tax" , "Pass swiftly and lightly over the surface" , "Remove top layer; read bits of" , "Read superficially" , "Read (something) quickly" .)