Cryptic crossword clue
There’s a wavering around most of back lighting effect on the moon 10

The most common and most likely answer to this crossword clue is the 10 letter word EARTHSHINE

I've seen this crossword clue in The Times
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Buddy explains!

The straight part
We know that "lighting effect on the moon" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lighting effect on the moon = earthshine.
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 EARTHSHINE mean?

EARTHSHINE noun
  1. Reflected earthlight visible on the Moon's night side.

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