### Clue: Hack wants initial hundred quid, maybe (4)
### Answer: CHEW 
 ### Explanation: Definition: quid, maybe
 HEW(to hack;to chop) **placed after**(wants initial, in an across clue) C(Roman numeral for a hundred).
Defn. & Answer: A piece of tobacco suitable for chewing.  You don't have to smoke it for it to kill you.