Beat back in a game (4)

I believe the answer is:

flog

I'm a little stuck... Click here to teach me more about this clue!

'beat' is the definition.
(flogging is a kind of beating)

I don't understand the remainder of the clue.

(Other definitions for flog that I've seen before include "Lash" , "Keep hitting" , "Scourge, whip" , "Swing a cat, perhaps" , "- - a dead horse" .)

I've seen this clue in the Evening Standard.

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.