Disreputable place for a smoke? (5)
I believe the answer is:
joint
'for a smoke?' is the definition.
(joint is a kind of smoke)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for joint that I've seen before include "Knee or elbow?" , "American bar" , "Piece of meat - illegal smoke" , "Structure by which bones are fitted together" , "Together - location" .)