Crossword Genius

Hybrid car has its big release (9)

Ross

I believe the answer is:

catharsis

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

'big release' is the definition.
'catharsis' can be an answer for 'release' (I've seen this before). I am unsure of the 'big' bit.

'hybrid car has its' is the wordplay.
'hybrid' is an anagram indicator (I've seen this in other clues).
'car'+'has'+'its'='carhasits'
'carhasits' with letters rearranged gives 'CATHARSIS'.

Can you help me to learn more?

(Other definitions for catharsis that I've seen before include "The release of pent-up emotions" , "cleansing'" , "relief of tensions" , "Process of releasing pent-up emotions" , "Emotional purge" .)

I've seen this clue in The Sunday Times and The Times.
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