Aussie criminal's after favour for movie star (5,5)

I believe the answer is:

grace kelly

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'movie star' is the definition.
(I've seen this before)

'aussie criminal's after favour' is the wordplay.
'aussie criminal' becomes 'kelly' (I am not sure about this - if you are sure you should believe this answer much more).
'after' is a charade indicator (letters next to each other).
'favour' becomes 'grace' (synonyms).
'kelly' after 'grace' is 'GRACE KELLY'.

'for' is the link.

Can you help me to learn more?

(Another definition for grace kelly that I've seen is " movie star".)

I've seen this clue in The Everyman puzzle in The Observer.

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