Turning up before noon, getting injection in a state (6)

I believe the answer is:

punjab

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'injection in a state' is the definition.
'punjab' can be an answer for 'state' (I've seen this before). I am not certain of the 'injection in a' bit.

'turning up before noon getting' is the wordplay.
'turning' shows that the letters should be reversed in order.
'before' is a charade indicator (letters next to each other).
'noon' becomes 'n'.
'getting' becomes 'jab' (I can't justify this - if you can you should believe this answer much more).
'up' backwards is 'pu'.
'pu'+'n'+'jab'='PUNJAB'

Can you help me to learn more?

(Other definitions for punjab that I've seen before include "Region of NW India and NE Pakistan, chief city Lahore" , "Asian region" , "Province of Pakistan, capital Lahore" , "Indian state" , "State of NW India, chief city Lahore" .)

I've seen this clue in The Daily Express.

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