Windblown deposit (5)
I believe the answer is:
loess
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">windblown deposit</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for loess that I've seen before include "Wind-blown loamy deposit" , "geological feature" , "Compacted wind-blown sediment (geology)" , "desposit" , "that may be deposited" .)