The most common and most likely answer to this crossword clue is the 8 letter word INTERRED
I
N
T
E
R
R
E
D
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The straight part
We know that "buried" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case buried = interred.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 INTERRED mean?
INTERRED verb- To bury in a grave.
- To confine, as in a prison.
- Having been interred.
- (of a buried corpse) Located.