Cryptic crossword clue
Fraudster’s book sent up in university staff room 7

The most common and most likely answer to this crossword clue is the 7 letter word SCAMMER

I've seen this crossword clue in The Times
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The straight part
We know that "Fraudster" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fraudster = scammer.
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 SCAMMER mean?

SCAMMER noun
  1. A swindler, cheat.

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