"Tomorrow, and tomorrow, and tomorrow, ... in this petty pace from day to day" (Macbeth) (6)
I believe the answer is:
creeps
(Other definitions for creeps that I've seen before include "feeling of revulsion" , "Moves slowly and stealthily" , "Sycophants" , "Moves silently and carefully" , "''Tomorrow, and tomorrow, and tomorrow, ... in this petty pace from day to day'' (Macbeth)" .)