Disrespectful and unwise to snub Republican (8)
I believe the answer is:
impudent
'disrespectful' is the definition.
('impudent' can be similar in meaning to 'disrespectful')
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for impudent that I've seen before include "Lippy" , "Rude" , "Audacious" , "Impertinent, insolent" , "Cheeky, disrespectful" .)