Misdeed from person selling hot stuff (7)
I believe the answer is:
offence
'misdeed' is the definition.
(I've seen this before)
'from person selling hot stuff' is the wordplay.
I cannot really see how this works, but
'from' could be 'off' (I've seen this in other clues) and 'off' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for offence that I've seen before include "Crime; insult" , "Misdeed" , "Criminal action" , "Aggressive action" , "Discourtesy" .)