Good article about Old English writer (6)
I believe the answer is:
goethe
'writer' is the definition.
(Goethe is an example)
'good article about old english' is the wordplay.
'good' becomes 'g' (abbreviation).
'article' becomes 'the' (the 'definite article' part of speech).
'about' is a charade indicator (letters next to each other).
'old english' becomes 'oe'.
'the' put after 'oe' is 'oethe'.
'g'+'oethe'='GOETHE'
(Other definitions for goethe that I've seen before include "Eighteenth to nineteenth century German poet and dramatist (Faust)" , "Poet's" , "German playwright and poet" , "Johann Wolfgang von -, German dramatist" , "The ego, strangely, of the German writer" .)