The most common and most likely answer to this crossword clue is the 10 letter word DEVASTATES
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More clues leading to the result DEVASTATES
Buddy explains!
The straight part
We know that "Ruins" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case ruins = devastates.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 DEVASTATES mean?
DEVASTATES verb- To ruin many or all things over a large area, such as most or all buildings of a city, or cities of a region, or trees of a forest.
- To destroy a whole collection of related ideas, beliefs, and strongly held opinions.
- To break beyond recovery or repair so that the only options are abandonment or the clearing away of useless remains (if any) and starting over.