Recedes (4)
I believe the answer is:
ebbs
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">recedes</span>' is the definition.<br/ ><span class="explanation-format__explanation">(ebbing is a kind of receding)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ebbs that I've seen before include "Goes out like tide" , "Wanes" , "Subsides" , "flags" , "Flows back or recedes" .)