### Clue: Cigarette's not good – it's rough (5)
### Answer: ASPER 
 ### Explanation: Definition: rough
  "gasper"(British slang for a cigarette, presumably because it makes the smoker gasp) **minus**(…'s not) "g"(abbrev. for "good"). 
Answer:  An obsolete word for "rough";coarse, from Latin.