The most common and most likely answer to this crossword clue is the 8 letter word LANDLORD
I've seen this crossword clue in The Guardian
L
A
N
D
L
O
R
D
More clues leading to the result LANDLORD
- Letter upset ageing King invading country
- Letter also featured in comical write-up
- Succeed in marrying aristocrat, a man of property
- Host who might give others some digs?
- Letter to innkeeper
- Publican left with master
- Letter left with master
- Letter to settle status of ennobled man
- Letter providing you with accommodation
- Letter that has one’s address?
Buddy explains!

The straight part
We know that "Letter" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case letter = landlord.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 LANDLORD mean?
LANDLORD noun- A person who owns and rents land such as a house, apartment, or condo.
- The owner or manager of a public house.
- (with "the") A shark, imagined as the owner of the surf to be avoided.