Crossword Genius

Self-centred response from Jill after fall (2,3,5,4)

Ross

I believe the answer is:

im all right jack

'self-centred response' is the definition.
(phrase representing a selfish attitude)

I don't understand the remainder of the clue.

(Other definitions for im all right jack that I've seen before include "reveals complacent attitude" , "Selfish comment" , "I don't care about you" , "Smug" , "words to partner after fetching water from tumbler?" .)

I've seen this clue in The Guardian.
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