Clue: Emptied pot over me in a rage — it smells horrible! (8)
Answer: PTOMAINE
Explanation: Definition: it smells horrible
A charade of PT ('emptied **P**o**T**') plus O ('over') plus MAINE, an anagram ('rage') of 'me in a', for compounds formed in rotting organic matter, including the aptly named putrescine and cadaverine.