Came to trader via transport (7,2)

I believe the answer is:

arrived at

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'came' is the definition.
The answer and definition can be both to do with motion as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?

'trader via transport' is the wordplay.
'transport' is an anagram indicator (I've seen 'transported' mean this).
'trader'+'via'='tradervia'
'tradervia' is an anagram of 'ARRIVED AT'.

'to' acts as a link.

Can you help me to learn more?

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

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