The most common and most likely answer to this crossword clue is the 6 letter word ORWELL
I've seen this crossword clue in The Guardian
O
R
W
E
L
L
More clues leading to the result ORWELL
- English author’s goldmine?
- Author’s indication of alternative source
- Writer needing men in good health
- His literary works a gold mine?
- Gold found by source of river
- Soldiers meeting fine author
- Writer wrote timeless moving lines
- Etonian yearbook author whose elder sibling saw everything
- Socialist author otherwise sensible
- Gold pleasing Blair
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 = orwell.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.