Cryptic crossword clue
Blue Berets’ former muscle man not bargained for 10

The most common and most likely answer to this crossword clue is the 10 letter word UNEXPECTED

I've seen this crossword clue in The Times
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Buddy explains!

The straight part
We know that "not bargained for" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case not bargained for = unexpected.
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 UNEXPECTED mean?

UNEXPECTED adjective
  1. Not expected, anticipated or foreseen.

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