Obscure points about parts of film (7)
I believe the answer is:
eclipse
'obscure' is the definition.
(I know that eclipse is a type of overshadow)
'points about parts of film' is the wordplay.
'points' becomes 'ee' (an abbreviation for a compass point written twice).
'about' is an insertion indicator.
'parts of film' becomes 'clips' (I can't justify this - if you can you should give a lot more credence to this answer).
'ee' placed around 'clips' is 'ECLIPSE'.
Can you help me to learn more?
(Other definitions for eclipse that I've seen before include "Heavenly phenomenon" , "Obscurement of one heavenly body by another" , "Heavenly obscuration" , "Lunar or solar phenomenon" , "Obscure light from (other celestial body)" .)