Cryptic crossword clue
Beneath name, corpse treated with oil found here 10

The most common and most likely answer to this crossword clue is the 10 letter word NECROPOLIS

I've seen this crossword clue in The Guardian
N
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C
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O
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Buddy explains!

The straight part
We know that "corpse/found here" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case corpse/found here = necropolis.
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 NECROPOLIS mean?

NECROPOLIS noun
  1. A cemetery; especially a large one in or near a city.
  2. An ancient site used for burying the dead, particularly if consisting of elaborate grave monuments.

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