Block out bits of film seen during middle of week (7)
I believe the answer is:
eclipse
'block out' is the definition.
'eclipse' can be an answer for 'block' (I've seen this before). I am not sure about the 'out' bit.
'bits of film seen during middle of week' is the wordplay.
'bits of film' becomes 'clips' (film clips).
'seen during' is an insertion indicator.
'middle of' says to take the centre.
The middle letters of 'week' are 'ee'.
'clips' put inside 'ee' is 'ECLIPSE'.
Can you help me to learn more?
(Other definitions for eclipse that I've seen before include "The blocking of light of one heavenly body by another" , "Blot out" , "period of darkness" , "Block" , "Hiding of one body by another" .)