Every Good Boy Deserves Favour, say (8)

I believe the answer is:

mnemonic

(Other definitions for mnemonic that I've seen before include "Letters aiding memory" , "That which helps memory, a rhyme say" , "System for improving memory" , "System to improve memory" , "It reminds us" .)

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.