Procrastinates (6)
I believe the answer is:
delays
'procrastinates' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for delays that I've seen before include "Hinders, makes late" , "Time losses or obstacles" , "Procrastinations or postponements" , "Slows something down" , "Holdups, postponements" .)