Wet through (6)
I believe the answer is:
sodden
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wet through</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sodden that I've seen before include "Completely saturated" , "Soaked to the skin" , "Waterlogged" , "heavy with moisture" , "'Soaked, sopping (6)'" .)