"SEAT Ibiza extremely racy," she snarled (4,5)
I believe the answer is:
easy chair
'seat' is the definition.
(I know that easy chair is a type of seat)
'ibiza extremely racy she snarled' is the wordplay.
'extremely' means to remove the middle letters (only the extremes of the word are used).
'snarled' indicates an anagram (to snarl can mean to entangle or twist).
'ibiza' with its centre removed is 'ia'.
'ia'+'racy'+'she'='iaracyshe'
'iaracyshe' anagrammed gives 'EASY CHAIR'.
(Other definitions for easy chair that I've seen before include "Common room feature" , "nice spot to be in" , "It's not hard to sit in" , "ambitious professor avoids" , "Academic sinecure" .)