The most common and most likely answer to this crossword clue is the 8 letter word SCREEDED
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Buddy explains!
The straight part
We know that "levelled" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case levelled = screeded.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 SCREEDED mean?
SCREEDED verb- To rend, to shred, to tear.
- To read or repeat from memory fluently or glibly; to reel off.
- To use a screed to produce a smooth, flat surface of concrete, plaster, or similar material; also (generally) to put down a layer of concrete, plaster, etc.
- To become rent or torn.
- To play bagpipes, a fiddle, or a pipe.
- To make a discordant or harsh scratching or tearing sound.
- To play (a sound or tune) on bagpipes, a fiddle, or a pipe.