Eat and run (4)
I believe the answer is:
bolt
I believe this clue is a double definition.
'eat' is the first definition.
(bolting is a kind of eating)
'run' is the second definition.
(thesaurus)
'and' acts as a link.
(Other definitions for bolt that I've seen before include "playwright" , "Fasten - flee" , "for security reasons" , "Lightning flash, fasten" , "A . . . . from the blue is a complete surprise" .)