Slightest (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">slightest</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for least that I've seen before include "Opposite of most" , "Smallest in extent" , "To the lowest degree" , "Smallest in amount or degree" , "Superlative form of 'little'" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">slightest</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 merest that I've seen before include "Smallest, slightest" , "Extremely small" , "Absolutely nothing more or better - in metres" .)