Use a towel on (3)
I believe the answer is:
dry
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">use a towel on</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 dry that I've seen before include "Thirsty" , "Dull" , "Formal" , "Waterless" , "Uninteresting" .)