Related Clues:

• Snoopy is one
• 62-Down sib
• Nickname akin to "dude"
• Sib for sis, perhaps
• Brother, slangily
• Sis' male sib
• 'Don't tase me, __!'
• Kin of Mac
• Setter or shepherd, e.g.
• Sis' counterpart
• Pal, on the streets
• Marmaduke, e.g.
• Alter ego
• Collie or cockapoo
• 47-Across, e.g