Related Clues:

• To open up implant is clear and urgent
• Finally pronounces over missile, giving views forcefully
• Gravelly voiced
• Start of a mathematical proof
• Rough walk over Aussie territory
• A s-spear? That's harsh!
• Rough-sounding
• Grating trends it disrupted
• Harsh to walk when night ends
• Point on missile launched from submarine grating
• Harsh pace, and not disheartened
• Point spear for piercing
• Small ballistic missile, shrill
• Despatched to collect soil on the way back - that's harsh
• Piercing with small spear