Crossword Genius

This will bring The Tourists back to where it all started and it's in The Ticket perhaps? (5,4)

Ross

I believe the answer is:

round trip

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'this will bring the tourists back to where it all started and it's in the ticket perhaps?' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

This is the entire clue.

Can you help me to learn more?

(Other definitions for round trip that I've seen before include "orbit" , "that leaves you where you started" , "going both ways" , "Journey returning to start" , "excursion" .)

I've seen this clue in The Irish Times.
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