The most common and most likely answer to this crossword clue is the 9 letter word ENCRUSTED
E
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Buddy explains!
The straight part
We know that "Covered" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case covered = encrusted.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 ENCRUSTED mean?
ENCRUSTED verb- To cover with a hard crust.
- To form a crust.
- To inset or affix decorative materials upon (a surface); to inlay into, as a piece of carving or other ornamental object.
- Having an incrustation