Use a straw? (4)
I believe the answer is:
suck
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">use a straw?</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 suck that I've seen before include "Absorb" , "Imbibe" , "Behave like Hoover, perhaps" , "Use lips and mouth to create a partial vacuum" , "Don't blow!" .)