Crossword Genius

Well refuted! (3)

Ross

I believe the answer is:

ill

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

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

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for ill that I've seen before include "Faulty" , "Under the weather" , "state, briefly" , "Where Chicagoans are briefly" , "Infirm" .)

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