Elementary (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">elementary</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for basic that I've seen before include "Fundamental, underlying" , "essential" , "Fundamental, forming a starting-point" , "Plain" , "Staple; ordinary" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">elementary</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for simple that I've seen before include "half-witted" , "A piece of cake" , "Easy to understand" , "Easily done/understood" , "Effortless" .)