Related Clues:

• Longtime crony
• Childhood chum
• Friend that goes way back
• Buddy for ages
• Longtime pal
• Chum since childhood
• Friend from way back
• Longtime chum
• Longtime ace
• Political pal
• Old chum
• On entering, greet close friend
• Urgent appeal about working in China
• Rabbit taking rook, resulting in mate
• Friend keen to keep on