The most common and most likely answer to this crossword clue is the 8 letter word EXTORTED
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More clues leading to the result EXTORTED
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The straight part
We know that "21 maybe did this" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case 21 maybe did this = extorted.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 EXTORTED mean?
EXTORTED verb- To take or seize off an unwilling person by physical force, menace, duress, torture, or any undue or illegal exercise of power or ingenuity
- To obtain by means of the offense of extortion.
- To twist outwards.