Some bittersweet mockumentary about Marquis de Sade - the French nobleman that can also be cheesy! (5)
I believe the answer is:
comte
'marquis de sade the french nobleman that can also be cheesy' is the definition.
The definition suggests a singular noun which matches the answer.
'some bittersweet mockumentary about' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'about' says the letters should be written in reverse.
'etmoc' is hidden within 'bittersweet mockumentary'.
'etmoc' reversed gives 'COMTE'.
Can you help me to learn more?
(Other definitions for comte that I've seen before include "Philosopher" , "French nobleman" , "Foreign nobleman" .)