Has been (3)
I believe the answer is:
was
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">has been</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 was that I've seen before include "(He/she/it) existed" , "Used to be" , "Existed in the past" , "Did live" , "Is no longer" .)