The most common and most likely answer to this crossword clue is the 9 letter word TERRITORY
I've seen this crossword clue in The Guardian
T
E
R
R
I
T
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R
Y
More clues leading to the result TERRITORY
- Land‘s politician admitting slip before Congress
- Dread adopting digital applications on unknown ground
- Land — there’s failure to include it within the borders of Turkey
- Possession of just the thing, when in dread at day’s end
- Retrograde Indian food consumed by footballer in region
- Awful riot described by boy in region
- Make a mistake confronting it in Conservative area
- Land turtle, half conserved by one conservative
- Chelsea footballer eats Indian bread going around ground
- Slip it in politician’s bag
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 = territory.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.
What does TERRITORY mean?
TERRITORY noun- A large extent or tract of land; for example a region, country or district.
- One of three of Canada's federated entities, located in the country's Arctic, with fewer powers than a province and created by an act of Parliament rather than by the Constitution: Yukon, Northwest Territories, and Nunavut.
- One of three of Australia's federated entities, located in the country's north and southeast, with fewer powers than a state and created by an act of Parliament rather than by the Constitution: Northern Territory, Australian Capital Territory and Jervis Bay Territory.
- A geographic area under control of a single governing entity such as state or municipality; an area whose borders are determined by the scope of political power rather than solely by natural features such as rivers and ridges.
- An area that an animal of a particular species consistently defends against its conspecifics.
- The part of the playing field or board over which a player or team has control.
- A geographic area that a person or organization is responsible for in the course of work.
- A location or logical space which someone owns or controls.
- A market segment or scope of professional practice over which an organization or type of practitioner has exclusive rights.
- An area of subject matter, knowledge, or experience.