Check I leave after taking in conclusion of another Hitchcock film (7)
I believe the answer is:
vertigo
'hitchcock film' is the definition.
(Alfred Hitchcock film)
'check i leave after taking in conclusion of another' is the wordplay.
'check' becomes 'vet' (to vet someone is to check their background).
'i leave' becomes 'igo' (I can't explain this - if you can you should give a lot more credence to this answer).
'after taking in' means one lot of letters goes inside another.
'conclusion of' says to take the final letters.
The last letter of 'another' is 'r'.
'vet'+'igo'='vetigo'
'vetigo' going around 'r' is 'VERTIGO'.
Can you help me to learn more?
(Other definitions for vertigo that I've seen before include "Whirling sensation when balance is disturbed" , "Feeling of dizziness generated by heights" , "the Eiffel Tower effect" , "Sensation of dizziness brought on by heights" , "Trouble with heights" .)