Poorly, unwell (3)
I believe the answer is:
ill
This clue is a double definition.
'poorly' is the first definition.
(I know that poorly can be written as ill)
'unwell' is the second definition.
(similar in meaning)
(Other definitions for ill that I've seen before include "Misfortune" , "Groggy" , "US state" , "Imperfectly; unwell" , "Harm" .)