River warrior (6)

I believe the answer is:

amazon

I believe this is a double definition.

'river' is the first definition.
(Amazon River is an example)

'warrior' is the second definition.
(I've seen this before)

(Other definitions for amazon that I've seen before include "River in South America" , "very long river" , "Female warrior of Greek myth" , "S. America's longest river" , "Aggressive female" .)

I've seen this clue in The Mirror and 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.