Charge for freight - mind about the label (7)

I believe the answer is:

cartage

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'charge for freight' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe you can see an association between them that I don't see?

'mind about the label' is the wordplay.
'mind' becomes 'care' (I've seen this before).
'about' means one lot of letters goes inside another.
'the label' becomes 'tag' (tag is a kind of label).
'care' enclosing 'tag' is 'CARTAGE'.

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 Irish News.

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