Snooty person (4)
I believe the answer is:
snob
'snooty person' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for snob that I've seen before include "One places too high a value on social status" , "Person with pretensions to higher social status" , "Nose-in-the-air person who thinks he is socially superior" , "One has pretensions" , "Snooty type" .)