Unhealthy way to conclude a comedy (5)
I believe the answer is:
seedy
'unhealthy' is the definition.
(similar in meaning)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for seedy that I've seen before include "sickly" , "Off-colour" , "Sordid, squalid" , "Out of sorts" , "Grotty" .)