The most common and most likely answer to this crossword clue is the 10 letter word SCRUTINEER
I've seen this crossword clue in The Guardian
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More clues leading to the result SCRUTINEER
Buddy explains!
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 SCRUTINEER mean?
SCRUTINEER noun- A person who scrutinises; a person responsible for scrutineering.
- To scrutinise; to thoroughly check that an election is being run fairly, or that a vehicle meets the rules of a competition, etc.