Go like an exploding petard (6)
I believe the answer is:
depart
'go' is the definition.
('depart' can be a synonym of 'go')
'an exploding petard' is the wordplay.
'an exploding' indicates anagramming the letters.
'petard' anagrammed gives 'DEPART'.
'like' is the link.
(Other definitions for depart that I've seen before include "Retire from" , "Make an exit" , "Go away; deviate" , "Leave, vanish" , "Leave (6)" .)