Crossword Genius

Feeling unwell? No time for criticism (4)

Ross

I believe the answer is:

sick

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

This might be a double definition.

'feeling unwell? no' is the first definition.
Both the definition and answer are adjectives. Perhaps there's an association between them I don't understand?

'time for criticism' is the second definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.

Can you help me to learn more?

(Other definitions for sick that I've seen before include "well? Hardly" , "Ill, unwell" , "Poorly" , "vomit" , "Ill; perverted" .)

I've seen this clue in The Independent.
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