Snubs (7)
'snubs' is the definition.
('ignore' can be a synonym of 'snub')
This is all the clue.
(Other definitions for ignores that I've seen before include "Intentionally disregards" , "Cold shoulders" , "Runs away from" , "Pays no attention to" , "Snubs" .)
'snubs' is the definition.
('rebuff' can be a synonym of 'snub')
This is the entire clue.
(Other definitions for rebuffs that I've seen before include "Rejects abruptly" , "Brushes off" , "Snubs" , "Rejects outright and bluntly" , "Checks" .)
'snubs' is the definition.
(I've seen this in another clue)
This is all the clue.
(Another definition for slights that I've seen is " Shows indifference towards".)