Material in book upset right away (7)

I believe the answer is:

textile

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

'material' is the definition.
(synonyms)

'in book upset right away' is the wordplay.
'in book' becomes 'text' (text is a kind of book. I am not sure about the 'in' bit.).
'upset' becomes 'rile' (to rile is to annoy or upset).
'right' becomes 'r' (abbreviation).
'away' indicates named letters should be taken away.
'rile' with 'r' removed is 'ile'.
'text'+'ile'='TEXTILE'

Can you help me to learn more?

(Other definitions for textile that I've seen before include "Cloth, fabric, material" , "Woven cloth" , "The cloth's" , "'Fabric, material (7)'" , "Woven or machine-knitted fabric" .)

I've seen this clue in The Independent.

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.