Clue: Coarse fibre from part of Spain, end shifted quite a lot (7)
Answer: CANTALA
Explanation: Definition: Coarse fibre
**CATALAN** ("from part of Spain") with its *end shifted quite a lot *becomes **CA(N)TALA**. 
*Thanks to Marmite Smuggler at comment 1 for this, as I had the wrong parsing initially.