Run away like lightning? (4)
I believe the answer is:
bolt
I believe this is a double definition.
'run away' is the first definition.
(I've seen this in another clue)
'lightning?' is the second definition.
(I know that bolt is a type of lightning)
'like' acts as a link.
(Other definitions for bolt that I've seen before include "Runner" , "Run away; fasten (door)" , "Find a bar" , "Escape" , "Latch" .)