Some maze solvers (4)
I believe the answer is:
mice
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">some maze solvers</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 mice that I've seen before include "Tiny rodents" , "Small creatures in vermicelli" , "operate computers" , "''Of ... and Men'' (John Steinbeck)" , "people lacking character" .)