One put on this might experience unease (4)
I believe the answer is:
spot
This clue might be a double definition.
'one put on this might' is the first definition.
The answer and definition can be both human attributes as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'experience unease' is the second definition.
The definition and answer can be both human attributes as well as being singular nouns.
Maybe they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for spot that I've seen before include "Dirty blemish" , "Drop of rain" , "Notice; skin blemish" , "See - speckle" , "Notice, see" .)