The most common and most likely answer to this crossword clue is the 9 letter word TIPPERARY
I've seen this crossword clue in The Times
T
I
P
P
E
R
A
R
Y
More clues leading to the result TIPPERARY
- One leaning over a river ending in Liffey in Irish county
- Playing lead off Day Tripper, it’s so far away in song
- End woeful prayer in Irish county
- A track behind truck in Irish town
- List another prayer in Irish county
- Suggestion by Matthew in Friends about a county
- Attempt to hide protective gear commandeered by terrorists in Irish town
Buddy explains!

The straight part
We know that "Irish county" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case irish county = tipperary.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.