Moves on hands and knees (6)
I believe the answer is:
creeps
(Other definitions for creeps that I've seen before include "Sycophants" , "Moves slowly and stealthily" , "Toadies" , "'Tomorrow, and tomorrow, and tomorrow / . . . . . . in this petty place from day to day' (Macbeth)" , "Moves silently and carefully" .)