Angry right-winger? Good God! (6)
I believe the answer is:
gammon
'angry right-winger?' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'good god' is the wordplay.
'good' becomes 'g' (abbreviation).
'god' becomes 'ammon' (I've seen this before).
'g'+'ammon'='GAMMON'
Can you help me to learn more?
(Other definitions for gammon that I've seen before include "Cured meat of hindquarters of a pig" , "bit of a swine" , "Bottom piece of a side of bacon" , "humbug!" , "Cured ham; nonsense" .)