Style of military march (5,4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
goose step
(Other definitions for goose step that I've seen before include "Type of military march" , "Military marching style of the Nazis" , "Manner of marching, keeping the legs straight" , "See stop-go kind of military march" , "Manner of marching with legs straight and swinging high" .)