Superciliousness (13)
I believe the answer is:
condescension
'superciliousness' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for condescension that I've seen before include "Graciousness as to an inferior" , "Disdain, haughtiness" , "Patronisation" , "Patronising arrogance" , "Patronising attitude" .)