Go smoothly, as at the palais (5)
I believe the answer is:
glide
'go smoothly' is the definition.
(I've seen this in another clue)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for glide that I've seen before include "Slide smoothly" , "Soar" , "Gelid (anag.)" , "Move smoothly and easily" , "Move smoothly and effortlessly" .)