Intimidate with extremely unfit addition to scary film (5,3)
I believe the answer is:
psych out
'intimidate' is the definition.
(I've seen this in another clue)
'extremely unfit addition to scary film' is the wordplay.
'extremely' suggests removing the centre (only the extremes of the word are used).
'addition to' is a charade indicator (letters next to each other).
'scary film' becomes 'psycho' (Alfred Hitchcock film. I am not sure about the 'scary' bit.).
'unfit' with its middle taken out is 'ut'.
'ut' put after 'psycho' is 'PSYCH OUT'.
'with' is the link.
Can you help me to learn more?
(Other definitions for psych out that I've seen before include "Guess correctly the intentions of another (informal)" , "Undermine" , "intimidate" , "Play mental games" , "Informally, guess correctly the intentions of another" .)