The most common and most likely answer to this crossword clue is the 9 letter word CLOSE-SET
C
L
O
S
E
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S
E
T
Buddy explains!
The straight part
We know that "with little separating viewers" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case with little separating viewers = close-set.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 CLOSE-SET mean?
CLOSE-SET adjective- Set close together