The most common and most likely answer to this crossword clue is the 9 letter word LLANDUDNO
I've seen this crossword clue in The Times
L
L
A
N
D
U
D
N
O
More clues leading to the result LLANDUDNO
- Resort everyone rejected — Northern failure? No
- Town, it's plain, hiding new failure
- Upset about drab housing accompanying seaside town
- Estate feeding game outside new resort
- Inn loud lad disrupted I abandoned in Welsh place
- Welsh place left secure beside rough mound miles away
- Resort and country bordering lake sound possibly but lacking sun
- Turkey with plain dressing served around northern resort
Buddy explains!

The straight part
We know that "Town" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case town = llandudno.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.