Person not in good odour (7)
I believe the answer is:
stinker
'person' is the definition.
The answer is an example.
'in good odour' is the wordplay.
I cannot quite understand how this works, but
'in' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
'not' is the link.
Can you help me to learn more?
(Other definitions for stinker that I've seen before include "Difficult problem" , "no easy thing" , "Terrible job" , "Very hard task" , "Unpleasant person - difficult task" .)