Goods delivery brings some pictures into the animal enclosure (7)

I believe the answer is:

cartage

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'goods delivery' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'some pictures into the animal enclosure' is the wordplay.
'some pictures' becomes 'art'.
'into' is an insertion indicator.
'the animal enclosure' becomes 'cage' (I've seen this in another clue).
'art' going into 'cage' is 'CARTAGE'.

'brings' acts as a link.

Can you help me to learn more?

(Another definition for cartage that I've seen is " Cost of moving".)

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

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