Attractive to dismiss Democrat likely to get votes (9)
I believe the answer is:
electable
'likely to get votes' is the definition.
(likely to get elected)
'attractive to dismiss democrat' is the wordplay.
'attractive' becomes 'delectable' (delectable can mean attractive).
'to dismiss' indicates named letters should be taken away.
'democrat' becomes 'd'.
'delectable' with 'd' taken out is 'ELECTABLE'.
(Other definitions for electable that I've seen before include "Likely to attract votes" , "might be put in office" .)