Wave, say (7)

I believe the answer is:

gesture

(Other definitions for gesture that I've seen before include "Expressive arm movement" , "Message through movement" , "Hand motion" , "Expressive motion" , "Movement to express something" .)

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.