User-edited website (4)
I believe the answer is:
wiki
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">user-edited website</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 wiki that I've seen before include "means to collaborate on a website" , "result of online co-operation" .)