The most common and most likely answer to this crossword clue is the 8 letter word EMPOWERS
E
M
P
O
W
E
R
S
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The straight part
We know that "Sanctions" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sanctions = empowers.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 EMPOWERS mean?
EMPOWERS verb- To give permission, power, or the legal right to do something.
- To give someone more confidence and/or strength to do something, often by enabling them to increase their control over their own life or situation.