Like some doubts (7)
I believe the answer is:
nagging
'like some doubts' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nagging that I've seen before include "Henpecking" , "Constantly finding fault" , "Annoying continually" , "Continually complaining or faultfinding" , "Carping" .)