Chap, European, with ginger group, doing good (11)

'group doing good' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.

'chap european with ginger' is the wordplay.
'chap' becomes 'Ben' (man's name).
'european' becomes 'e' (abbreviation e.g. EU).
'with' means one lot of letters go next to another.
'ginger' becomes 'faction' (I can't justify this - if you can you should give a lot more credence to this answer).
'ben'+'e'+'faction'='BENEFACTION'

Can you help me to learn more?