Needing a drink (7)
I believe the answer is:
thirsty
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">needing a drink</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 thirsty that I've seen before include "Feeling the need to drink" , "Dry" , "Ardently desiring" , "Keen" , "Parched" .)