The most common and most likely answer to this crossword clue is the 6 letter word VETOES
I've seen this crossword clue in The Guardian
V
E
T
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More clues leading to the result VETOES
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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 VETOES mean?
VETOES noun- A political right to disapprove of (and thereby stop) the process of a decision, a law etc.
- An invocation of that right.
- An authoritative prohibition or negative; a forbidding; an interdiction.
- To use a veto against.