Hups

6 clues
Cadence sounds
Calls to a horse
Cadence syllables
Marching syllables
Drill cadence syllables
Cadence sounds, in the military
Similar answers:
Aarhus
Abesimpson
Aboggleypse
Aboutthehusband
Acabaretoldchum
Acanthus
Acanthuses
Aceinthehull
Achapsjokeslike
Achua
Achugofwine
Achumpatoxford
Achurchjanitor
Acorpsislying
Actonahunch
Actorthompson
Acups
Adamsedarischumer
Adeps
Adieuoahuisland