The most common and most likely answer to this crossword clue is the 9 letter word CRESCENTS
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Buddy explains!
The straight part
We know that "symbols for moon and silver" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case symbols for moon and silver = crescents.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 CRESCENTS mean?
CRESCENTS noun- The figure of the moon as it appears in its first or last quarter, with concave and convex edges terminating in points.
- Something shaped like a crescent, especially:
- A representation of the symbol used by Islamic caliphates
- A crescent spanner.
- Any of three orders of knighthood conferred upon foreigners to whom Turkey might be indebted for valuable services.
- The emblem of the waxing Moon with horns directed upward, when used in a coat of arms; often used as a mark of cadency to distinguish a second son and his descendants.
- A crescentspot butterfly.