Author, not English, that’s written about a city (5)
I believe the answer is:
milan
'city' is the definition.
(Milan is an example)
'author not english that's written about a' is the wordplay.
'author' becomes 'me' (the author of the crossword).
'not' is a deletion indicator.
'english' becomes 'E' (abbreviation).
'that's written about' becomes 'il' (I am not sure about this - if you are sure you should believe this answer much more).
'a' becomes 'an'.
'me' with 'e' taken out is 'm'.
'm'+'il'+'an'='MILAN'
Can you help me to learn more?
(Other definitions for milan that I've seen before include "Italian city with La Scala opera house" , "N. Italian city" , "Capital of Lombardy" , "City of northern Italy" , "Doorstep deliverer" .)