Nervous quiver (6)
I believe the answer is:
tremor
(Other definitions for tremor that I've seen before include "Quaver" , "Vibration - shaking" , "A little agitation" , "Minor earthquake" , "A slight shake, perhaps of earth" .)
I believe the answer is:
tremor
(Other definitions for tremor that I've seen before include "Quaver" , "Vibration - shaking" , "A little agitation" , "Minor earthquake" , "A slight shake, perhaps of earth" .)