An added comment or instruction (8)

I believe the answer is:

notation

'an added comment or instruction' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for notation that I've seen before include "Set of representative symbols" , "A comment added to a text" , "An added comment or instruction" , "Symbolic writing system" , "System of signs or symbols" .)

I've seen this clue in The Irish Times.

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.