Went first (3)
I believe the answer is:
led
'went first' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for led that I've seen before include "Went first to show the way" , "Emitter of light" , "Conducted" , "Light-emitting diode (abbr.)" , "Paved the way" .)