Speaking style out of uniform (8)

I believe the answer is:

delivery

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'speaking style out of uniform' is the definition.
I can't tell whether this definition defines the answer.

'speaking style out of uniform' is the wordplay.
'speaking' shows a homophone (sound like).
'style' becomes 'do' (both can refer to a hair style or hair do).
'out of' means to remove the last letter (I've seen 'out' mean this).
'uniform' becomes 'livery' (livery is a type of formal uniform).
'do' is a homophone of 'dew'.
'dew' with its last letter taken off is 'de'.
'de'+'livery'='DELIVERY'

Can you help me to learn more?

(Other definitions for delivery that I've seen before include "Throw of a cricket ball" , "Shipment" , "that might take 3-5 days" , "useful service for the housebound" , "articulation" .)

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

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