Superior attitude of hot film director (7)
I believe the answer is:
hauteur
'superior attitude' is the definition.
(hauteur can mean a superior or arrogant attitude)
'hot film director' is the wordplay.
'hot' becomes 'h' (abbreviation eg on taps).
'film director' becomes 'auteur' (term for a film director with a distinct style).
'h'+'auteur'='HAUTEUR'
'of' is the link.
(Other definitions for hauteur that I've seen before include "Proud superior attitude towards others" , "Surquedy" , "Nose-in-the-air pride" , "Proud disdain" , "Lofty pride, looking down on others" .)