Malaise results in enmity (3,7)
I believe the answer is:
ill feeling
'malaise' is the definition.
Both the answer and definition are singular nouns.
Maybe you can see a link between them that I can't see?
'results in enmity' is the wordplay.
I cannot quite see how this works, but
'in' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for ill feeling that I've seen before include "Sickly sensation" , "bad blood" .)