Ailment, malady (7)
I believe the answer is:
disease
I believe this clue is a double definition.
'ailment' is the first definition.
(I know that ailment can be written as disease)
'malady' is the second definition.
(I know that disease is a type of malady)
(Other definitions for disease that I've seen before include "Bodily disorder" , "blight" , "scrapie for example" , "Impairment of health" , "Contagion" .)