Crossword Genius

Do some artwork – in the blue, lacking detail (7)

Ross

I believe the answer is:

sketchy

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

'lacking detail' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for sketchy that I've seen before include "Superficial" , "first draft" , "Incomplete; rough" , "Imperfect" , "Imprecise" .)

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.