The most common and most likely answer to this crossword clue is the 6 letter word BARRIE
B
A
R
R
I
E
More clues leading to the result BARRIE
- Some minibar Riesling for Scottish dramatist
- Children's author having endless blockage
- Writer's block that's endless
- Endless obstacle for playwright
- Children's writer's block has no end
- Dramatist's railing not quite over.
- Playwright pulling back from boundary
- Playwright is desolate without scripture
- Scottish author railing endlessly
- Author with obstacle, not finishing
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 = barrie.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.