Of yore (5)
I believe the answer is:
olden
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">of yore</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for olden that I've seen before include "Former, past" , "Led on (anag)" , "as in time gone by" , "Of past (times)" , "Of a former age" .)