Seed covering (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">seed covering</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 aril that I've seen before include "appendage" , "Part of seed" , "Hairy or fleshy seed covering (botany), lair (anag.)" , "Seed cover; lair (anag.)" .)
(Other definitions for earth that I've seen before include "underground shelter" , "electrical safety precaution" , "Mud" , "cost of which is very high" , "Soil; fox's lair" .)