The most common and most likely answer to this crossword clue is the 10 letter word TRAGEDIANS
I've seen this crossword clue in The Sunday Telegraph
T
R
A
G
E
D
I
A
N
S
Buddy explains!

The straight part
We know that "dramatists" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dramatists = tragedians.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 TRAGEDIANS mean?
TRAGEDIANS noun- An actor who specializes in tragic roles
- A playwright who writes tragedies