From the pen of Eliot or Orwell? Dear me! (2,6)

I believe the answer is:
by george
'eliot or orwell? dear me' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'from the pen' is the wordplay.
'from' becomes 'by' (by can mean from a particular person).
'the pen' becomes 'george' (I can't justify this - if you can you should believe this answer much more).
'by'+'george'='BY GEORGE'
'of' is the link.
Can you help me to learn more?
(Other definitions for by george that I've seen before include "planes might be flown thus?" , "exclamation of astonishment" , "Dated expression of surprise" , "Goodness" , "Fancy that" .)
