Go with bundle, free to kill (8)
I believe the answer is:
bludgeon
'kill' is the definition.
The definition and answer can be both to do with contact as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?
'go with bundle free' is the wordplay.
'with' is a charade indicator (letters next to each other).
'free' indicates anagramming the letters.
'go'+'bundle'='gobundle'
'gobundle' anagrammed gives 'BLUDGEON'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for bludgeon that I've seen before include "Thick stick with a heavy end" , "Bully; heavy weapon" , "Thick club" , "Blunt instrument" , "Club used as a weapon" .)