Related Clues:
- It takes an old instrument to cut off the top of this in recognition
- South African instrument used for a military action
- Acknowledge a commander's entrance, maybe
- Gunshots from a drab outlying part of London
- Greet with a sign
- Greet(ing)
- Pay attention suddenly
- Recognize rank
- React when the brass walks in
- Suddenly focus
- Show some major respect?
- Heel-click follower
- Private action?
- Pay tribute to African country reporting loot
- Ceremonial firing of guns