Argali

6 clues
Bighorn
Mountain sheep
Asian wild sheep
Wild sheep of Asia
Spiral-horned sheep
Big-horned Asian sheep
Similar answers:
Aaargh
Aalarge
Aalii
Aaline
Aaliyah
Aargh
Ablepersonality
Absenceofalice
Absenceofmalice
Acaliberplusacaliber
Actualists
Actualities
Actuality
Actualize
Adamsalive
Adelaideaustralia
Admissioncharge
Adrenalin
Adrenaline
Adrenalinejkie