The most common and most likely answer to this crossword clue is the 7 letter word RECOUNT
I've seen this crossword clue in Financial Times
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More clues leading to the result RECOUNT
- Tell on Dracula?
- Detail which should decide a contested election
- Report result of tight vote?
- Tell story about nobleman
- Brenda-elevated aristocrat called for when it suits a candidate
- Detail concerning esteem
- Describe requirement after close vote
- Describe what may happen when the voting is close
- Check votes again in detail
- Tell and tell again
Buddy explains!

The straight part
We know that "Describe/what may happen when the voting is close" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case describe/what may happen when the voting is close = recount.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 RECOUNT mean?
RECOUNT noun- Narration, account, description, rendering
- To tell; narrate; to relate in detail
- To rehearse; to enumerate.
- A counting again, as of votes.
- To count again.