Cryptic crossword clue
Act assuming some won’t come because of personal problem? All right 8

The most common and most likely answer to this crossword clue is the 8 letter word OVERBOOK

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

The straight part
We know that "Act assuming some won’t come" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case act assuming some won’t come = overbook.
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 OVERBOOK mean?

OVERBOOK verb
  1. To sell or guarantee more seats for (an event) than actually exist.

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