Small whirlpool (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">small whirlpool</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 eddy that I've seen before include "Small circular movement of water" , "Founder of Christian Science, d. 1910" , "Whirl (in fluid)" , "Swirl; small whirlpool" , "religious leader" .)