clarion /klarˈi-ən/

1. A kind of trumpet whose note is clear and shrill
2. The sound of a trumpet, or a sound resembling that of a trumpet
3. See also clarino

clarion call noun (figurative)

A stirring summons (to duty, etc)

• pre-emptors
• pre-empts
• preen
• preened
• pre-engage
• pre-engaged
• pre-engagement
• pre-engagements
• pre-engages
• pre-engaging
• preen gland
• preen glands
• preening
• preens
• prees
• pre-establish
• pre-established
• pre-established harmony
• pre-establishing
• pre-establishs
• preeve
• preeves
• pre-exilian
• pre-exilic
• pre-exist