The most common and most likely answer to this crossword clue is the 9 letter word ANATOMIST
I've seen this crossword clue in The Guardian
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More clues leading to the result ANATOMIST
- Worker consuming tiny amount is expert on bodies
- It’s very small at first, doctor
- From Diana to Misty, one studies bodies
- One skilled in dissecting a small particle is team leader
- An old philosopher now in charge of dissecting?
- One cutting a mutated man to section bone-type?
- Soma disfigured with taint? That may be my speciality
- Expert on body from military alliance in a film
- Articles to film for the body expert
- Who will have dissected a film about allies
Buddy explains!

The straight part
We know that "doctor" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case doctor = anatomist.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 ANATOMIST mean?
ANATOMIST noun- One who studies, teaches, writes on, or does research on anatomy and anatomical structures.