Like a snail's pace (4)
I believe the answer is:
slow
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">like a snail's pace</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 slow that I've seen before include "Signal to follow" , "(Clock) behind" , "Intellectually dull" , "Owls (anag.)" , "Behind time" .)