Exudation (7)
I believe the answer is:
seepage
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">exudation</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 seepage that I've seen before include "Slowly leaking flow" , "Oozing liquid" , "liquid having soaked through" , "Slow fluid loss" , "Slow leakage" .)