Pompous walk (5)
I believe the answer is:
strut
'pompous walk' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for strut that I've seen before include "Brace; swagger" , "Walk in pompous self-satisfied way" , "Walk proudly like peacock" , "Walk proudly, swagger" , "Compression member; walk stiffly" .)