Blot out newsmen occasionally enjoying extract from movie (7)
I believe the answer is:
eclipse
'blot out' is the definition.
(I've seen this before)
'newsmen occasionally enjoying extract from movie' is the wordplay.
'occasionally' indicates alternate letters.
'enjoying' indicates putting letters inside.
'extract from movie' becomes 'clip' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The alternating letters of 'newsmen' are 'ese'.
'ese' going around 'clip' is 'ECLIPSE'.
Can you help me to learn more?
(Other definitions for eclipse that I've seen before include "Momentary disappearance of heavenly body" , "Deprive of prominence" , "Dull time for male duck" , "The blotting out of a heavenly body" , "Heavenly phenomenon" .)