First abode (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">first abode</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 eden that I've seen before include "PM, 1955-57" , "Genesis location" , "The original garden?" , "The - - Project, Cornwall" , "at Number Ten once?" .)