Crossword Genius

A writer long out of fashion (5)

Ross

I believe the answer is:

quill

I'm a little stuck... Click here to teach me more about this clue!

This clue could be a double definition.

'a writer' is the first definition.
(historical writing implement)

'long out of fashion' is the second definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

Can you help me to learn more?

(Other definitions for quill that I've seen before include "Porcupine spine" , "Feather for writing" , "Old writer" , "Hollow part of feather" , "Large feather" .)

I've seen this clue in The Globe and Mail.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.