Snobbish (5-2)
I believe the answer is:
stuck-up
'snobbish' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for stuck-up that I've seen before include "Snooty" , "Snobbish, proud" , "Hoity-toity" , "Overly conceited or arrogant" , "Toffee-nosed" .)