The most common and most likely answer to this crossword clue is the 10 letter word FACTORISED
I've seen this crossword clue in The Times
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Buddy explains!

The straight part
We know that "broken down somehow" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case broken down somehow = factorised.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 FACTORISED mean?
FACTORISED verb- To create a list of the factors of.
- To divide an expression into a list of items that, when multiplied together, will produce the original quantity.
- To warn not to pay or give up goods.
- To attach the effects of a debtor in the hands of a third party.