The most common and most likely answer to this crossword clue is the 8 letter word ATHENIAN
A
T
H
E
N
I
A
N
More clues leading to the result ATHENIAN
- European citizen, a chap around at that time
- Three articles about Northern Ireland — in Greek!
- Three articles about province relating to capital city
- Greek article framed by an Edinburgh man, perhaps
- Bottom perhaps ruined hat with inane transformation
- After that, avifauna regularly circulating about capital
- Attic in which Anita foolishly keeps hen
- Greek advanced, followed by 13
- A man subsequently detained as someone from foreign capital
- Attic in which Anita foolishly keeps bird
Buddy explains!

The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.