Cryptic crossword clue
Writer must’ve done it to dictionary! 6

The most common and most likely answer to this crossword clue is the 6 letter word OPENED

I've seen this crossword clue in Financial Times
O
P
E
N
E
D


Buddy explains!

The straight part
We know that "Writer must’ve done it to dictionary!" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case writer must’ve done it to dictionary! = opened.
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 OPENED mean?

OPENED verb
  1. To make something accessible or allow for passage by moving from a shut position.
  2. To make (an open space, etc.) by clearing away an obstacle or obstacles, in order to allow for passage, access, or visibility.
  3. To bring up, broach.
  4. To enter upon, begin.
  5. To spread; to expand into an open or loose position.
  6. To make accessible to customers or clients.
  7. To start (a campaign).
  8. To become open.
  9. To begin conducting business.
  10. To begin a side's innings as one of the first two batsmen.
  11. To bet before any other player has in a particular betting round in a game of poker.
  12. To reveal one's hand.
  13. (of a file, document, etc.) To load into memory for viewing or editing.
  14. To disclose; to reveal; to interpret; to explain.

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