The most common and most likely answer to this crossword clue is the 9 letter word SCULPTORS
I've seen this crossword clue in The Daily Telegraph
S
C
U
L
P
T
O
R
S
More clues leading to the result SCULPTORS
Buddy explains!
The straight part
We know that "Fashion models? That’s their job" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fashion models? that’s their job = sculptors.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 SCULPTORS mean?
SCULPTORS noun- A person who sculpts; an artist who produces sculpture.