The most common and most likely answer to this crossword clue is the 10 letter word PROSECUTED
I've seen this crossword clue in Financial Times
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More clues leading to the result PROSECUTED
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The straight part
We know that "tried/b/i" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case tried/b/i = prosecuted.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.
Crossword Answer definitions
PROSECUTED verb- To start criminal proceedings against.
- To charge, try.
- To seek to obtain by legal process.
- To pursue something to the end.