A little comb or electric drill (4)
I believe the answer is:
bore
'drill' is the definition.
(I know that drill can be written as bore)
'a little comb or electric' is the wordplay.
'a little' indicates the answer is hidden within the clue (a little bit of the clue).
'BORE' is hidden in the letters of 'comb or electric'.
(Other definitions for bore that I've seen before include "Tedious thing" , "Pierce - weary - tidal flood" , "Tedious person - wave - make a hole" , "Diameter of a gun barrel" , "A tedious long-winded person" .)