Dampen (7)
I believe the answer is:
moisten
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dampen</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that dampen can be written as moisten)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for moisten that I've seen before include "contrary to sixteen down [DEHYDRATE]!" , "Add water - dampen" , "It's on me (anag)" , "water a bit" , "Make damp, say lips with tongue" .)