Time to walk with swinging motion? Nonsense (7)
I believe the answer is:
twaddle
'nonsense' is the definition.
(informal term for nonsense or rubbish)
'time to walk with swinging motion?' is the wordplay.
'time' becomes 't' (abbreviation).
'to walk with swinging motion?' becomes 'waddle' (to waddle is to sway as one walks).
't'+'waddle'='TWADDLE'
(Other definitions for twaddle that I've seen before include "Poppycock" , "Claptrap" , "Rubbish" , "tripe" , "Drivel" .)