The most common and most likely answer to this crossword clue is the 12 letter word STATISTICIAN
I've seen this crossword clue in The Daily Telegraph
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More clues leading to the result STATISTICIAN
- Stable fellow first engaged as data analyser
- Asiatic stint excited numbers expert
- One collecting data that's intact, as it is after adjustment
- Rewritten, after resistance suppressed, it’s antiracist, this guy figures?
- Analyst of data that’s roughly intact as it is
- I insist tact must be deployed to trap a data expert
- Data analyst seeing it is as intact after processing
- Analyst of data that's roughly intact as it is
- Number cruncher standing with Italian artist in conversation
Buddy explains!

The straight part
We know that "Data analyst" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case data analyst = statistician.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 STATISTICIAN mean?
STATISTICIAN noun- A person who compiles, interprets, or studies statistics.
- A mathematician with a specialty of statistics.