Plot a bit of disobedience (3)
I believe the answer is:
bed
'plot' is the definition.
(a plot of land)
'a bit of disobedience' is the wordplay.
'a bit of' indicates the answer is hidden within the clue.
'BED' is hidden within 'disobedience'.
(Other definitions for bed that I've seen before include "pit" , "Sleeping place" , "In which to place the body of flowers" , "Place for plants and sleep" , "Matrimonial duties" .)