Pioneered (3)
I believe the answer is:
led
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pioneered</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 led that I've seen before include "Went first to show the way" , "was in the van" , "Took by the hand and showed the way" , "Something emitting light" , "Guided; small light" .)