Crossword Genius

Kicking back, grasp one argument about street art (8)

Ross

I believe the answer is:

graffiti

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

'street art' is the definition.
(I know that graffiti is a type of street art)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for graffiti that I've seen before include "Wall scribbles" , "Alfresco wall art" , "Writing on the wall" , "act of vandalism?" , "Drawing" .)

I've seen this clue in the Sydney Morning Herald.
Want a hint initially instead of a full solution? Install my app