The most common and most likely answer to this crossword clue is the 13 letter word LIECHTENSTEIN
L
I
E
C
H
T
E
N
S
T
E
I
N
More clues leading to the result LIECHTENSTEIN
- The Leninist managed to capture city and country
- Hint Celestine somehow is in this country
- False report about the tennis fiasco in part of Europe
- Artist touring English principality
- State it is lent, hence restitution is required
- Lenient ethics irritated philosopher
- Country’s silence, then it’s erupting
- Almost entitle Chinese to run country?
Buddy explains!

The straight part
We know that "part of Europe" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case part of europe = liechtenstein.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.