More spiteful jazz fan has a row (7)

I believe the answer is:

cattier

'more spiteful' is the definition.
(I've seen this in another clue)

'jazz fan has a row' is the wordplay.
'jazz fan' becomes 'cat' (slang term for a jazz fan).
'has' says to put letters next to each other.
'a row' becomes 'tier' (a tier is a row of things).
'cat'+'tier'='CATTIER'

(Another definition for cattier that I've seen is " more spiteful".)

I've seen this clue in the Sydney Morning Herald.

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