Woman writing a novel thus, Rose (9)
I believe the answer is:
authoress
'woman' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'a novel thus rose' is the wordplay.
'novel' indicates an anagram.
'thus'+'rose'='thusrose'
'thusrose' with letters rearranged gives 'uthoress'.
'a'+'uthoress'='AUTHORESS'
'writing' is the link.
Can you help me to learn more?
(Other definitions for authoress that I've seen before include "Christie possibly" , "Female writer" , "Agatha Christie, perhaps" .)