The most common and most likely answer to this crossword clue is the 8 plus 7 letter word MARGARET DRABBLE
I've seen this crossword clue in Financial Times
M
A
R
G
A
R
E
T
D
R
A
B
B
L
E
More clues leading to the result MARGARET DRABBLE
Buddy explains!

The straight part
We know that "Female novelist" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case female novelist = margaret drabble.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.