The most common and most likely answer to this crossword clue is the 8 letter word ANDORRAN
I've seen this crossword clue in The Guardian
A
N
D
O
R
R
A
N
More clues leading to the result ANDORRAN
- A little land’s needing two gates bolted
- Fine briefly raised with leading European
- European article published about revolutionary Pole
- Accompanied by men, fled from mountain principality
- Joiner taking gold fled from the country
- One girl carrying another across river in small country
- Craft on radar, north of country
- European lands boundlessly managed locking up gold
- One, the other, possibly both, managed someone from principality
- Gates say, managed one from Europe
Buddy explains!
The straight part
We know that "from mountain principality" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case from mountain principality = andorran.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.