The most common and most likely answer to this crossword clue is the 12 letter word VETERINARIAN
I've seen this crossword clue in The Times
V
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More clues leading to the result VETERINARIAN
Buddy explains!
The straight part
We know that "Animal bones found in America" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case animal bones found in america = veterinarian.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 VETERINARIAN mean?
VETERINARIAN noun- A medical doctor who treats animals.
- Veterinary