The most common and most likely answer to this crossword clue is the 7 letter word ARMENIA
A
R
M
E
N
I
A
More clues leading to the result ARMENIA
- Country song gripping people
- Song about chaps in a foreign land
- Country folk involved in operatic number
- Airmen bombed a country
- Country gents with something to sing about?
- Song about chaps in Caucasian republic
- Country song about people
- Country dudes getting into operatic number
- Pieces inspired by song for the nation
- Country fellows settling in a sort of valley
Buddy explains!

The straight part
We know that "Caucasian republic" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case caucasian republic = armenia.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.