Crossword Genius

Having been told it was wrong to sit down? (8,9)

Ross

I believe the answer is:

standing corrected

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

'down?' is the definition.
Both the definition and answer are adjectives.
Perhaps they are linked in a way I don't understand?

I don't understand the remainder of the clue.

Can you help me to learn more?

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