The most common and most likely answer to this crossword clue is the 9 letter word LIBRATION
I've seen this crossword clue in Financial Times
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More clues leading to the result LIBRATION
Buddy explains!
The straight part
We know that "It brings something extra into view" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case it brings something extra into view = libration.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 LIBRATION mean?
LIBRATION noun- The act of librating.
- The apparent wobble or variation in the visible side of the Moon that permanently faces the Earth, allowing observers on Earth to see, over a period of time, slightly more than half of the lunar surface.
- (by extension) A similar rotational or orbital characteristic of some other celestial body.
- A vibrational degree of freedom whereby a group of atoms partly rotates back and forth, similar to the Moon's motion.