Cryptic crossword clue
One with particular interest in slaying vampires? 11

The most common and most likely answer to this crossword clue is the 11 letter word STAKEHOLDER

I've seen this crossword clue in Financial Times
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Buddy explains!

The straight part
We know that "One with particular interest" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one with particular interest = stakeholder.
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 STAKEHOLDER mean?

STAKEHOLDER noun
  1. A person holding the stakes of bettors, with the responsibility of delivering the pot to the winner of the bet.
  2. An escrow agent or custodian.
  3. A person filing an interpleader action, such as a garnishee or trustee, who acknowledges possession of property that is owed to one or more of several other claimants.
  4. A person or organisation with a legitimate interest in a given situation, action or enterprise.

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