Going with the stream (9)

I believe the answer is:

downriver

(Other definitions for downriver that I've seen before include "From source to mouth" , "over to the sea" , "going to the coast?" , "near mouth of Thames?" .)

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.