Secretive president ran ceremonial opening (8)
I believe the answer is:
entrance
'opening' is the definition.
(opening leading to a building)
'secretive president ran ceremonial' is the wordplay.
'ENTRANCE' is hidden within the letters.
However, I'm uncertain how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for entrance that I've seen before include "drawbridge?" , "Way in - hypnotise" , "Hold" , "Charm - one's way in" , "Enrapture; door" .)