The most common and most likely answer to this crossword clue is the 10 letter word BANGLADESH
I've seen this crossword clue in The Guardian
B
A
N
G
L
A
D
E
S
H
More clues leading to the result BANGLADESH
- Commercial breaks charm quiet nation
- Boycott pleased he’s excited the country
- Land makes outlaw happy and he’s reformed
- New open space secured by party in country
- Bill wears Sikh wedding rings, hard in a Muslim land
- Boycott clearing sightscreen helps openers for cricketing nation
- Country party around Durham area? Happy to be included
- Outlaw pleased he’s abandoned country
- Left in Aden, bags possibly heading for hilly Asian country
- Land report by boy — he's confused
Buddy explains!

The straight part
We know that "Land" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case land = bangladesh.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.