Poorly (3)
'poorly' is the definition.
(synonyms)
This is all the clue.
(Other definitions for ill that I've seen before include "Unwell, sick" , "Not in good health" , "Not well, sick" , "Indisposed" , "I will (abbrev.) (1'2)" .)
'poorly' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for badly that I've seen before include "Severely; seriously" , "Seriously; poorly" , "Severely; very much" .)
(Other definitions for out of sorts that I've seen before include "Not feeling quite right" , "Slightly unhappy" , "Not feeling good" , "under the weather" , "Slightly unwell" .)