Cryptic crossword clue
Book in its entirety produced on time, in fact 10

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

I've seen this crossword clue in The Times
T
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Y

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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 TRUTHFULLY mean?

TRUTHFULLY adverb
  1. (manner) In a truthful manner
  2. Frankly.

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