The most common and most likely answer to this crossword clue is the 4 plus 5 letter word GORE VIDAL
G
O
R
E
V
I
D
A
L
More clues leading to the result GORE VIDAL
- Writer’s aim to hold loon, say, back
- Writer‘s blood given to daughter in small bottle
- Author of Blood very keen to return to Lima
- Virago deal unlikely
- Novelist recalling Ronaldo, for one, in diary
- Aim to check off drive? He's written volumes
- Author of Lincoln objective about gun I had
- US writer, associate of Clinton, pens 6D
- Aquatic athlete on the rebound embraced by objective writer
Buddy explains!

The straight part
We know that "Writer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case writer = gore vidal.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.