The most common and most likely answer to this crossword clue is the 8 letter word DISCERNS
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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 DISCERNS mean?
DISCERNS verb- To detect with the senses, especially with the eyes.
- To perceive, recognize, or comprehend with the mind; to descry.
- To distinguish something as being different from something else; to differentiate.
- To perceive differences.