Dislike being again dismissed? (6)
I believe the answer is:
resent
'dislike' is the definition.
(to resent is to dislike or begrudge)
'again dismissed?' is the wordplay.
'again' becomes 're' (prefix meaning 'again').
'dismissed?' becomes 'sent' (I've seen this in other clues).
're'+'sent'='RESENT'
'being' is the link.
(Other definitions for resent that I've seen before include "Take something as an affront" , "Dislike" , "Don't like" , "Take offence at" , "Feel displeased or indignant about" .)