Misgivings, feelings of uneasiness (6)
I believe the answer is:
qualms
I believe this is a double definition.
'misgivings' is the first definition.
(I know this)
'feelings of uneasiness' is the second definition.
(I've seen this in another clue)
(Other definitions for qualms that I've seen before include "Feelings of doubt" , "Misgivings, pangs of conscience" , "Misgivings, feelings of uneasiness" .)