Related Clues:

• Friend from way back
• Longtime chum
• Longtime ace
• Childhood friend
• Longtime intimate
• Lifetime chum
• School chum, say
• Compadre from way back
• Friend since kindergarten, say
• First mate, say?
• Bud from way back
• Friend since childhood
• Longtime bud
• Friend since childhood, say
• Lifelong chum