Crossword Genius

Each live broadcast is without a carrier (7)

Ross

I believe the answer is:

vehicle

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'carrier' is the definition.
(thesaurus)

I cannot understand how the remainder of the clue works.

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(Other definitions for vehicle that I've seen before include "Conveyance for transport" , "Conveyance of people or things" , "Means of conveyance" , "Eg, car" , "Structure for transporting" .)

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