Revealing feature of French artwork that includes sci-fi picture (11)
I believe the answer is:
decolletage
'revealing feature' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'of french artwork that includes sci-fi picture' is the wordplay.
'of french' becomes 'de' ('of' in French).
'artwork' becomes 'collage' (I've seen this before).
'that includes' means one lot of letters goes inside another.
'sci-fi picture' becomes 'et' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'collage' enclosing 'et' is 'colletage'.
'de'+'colletage'='DECOLLETAGE'
Can you help me to learn more?
(Other definitions for decolletage that I've seen before include "Dress style" , "Revealing cut" , "Low neckline" , "Low-cut neckline" .)