Related Clues:

• Fix opening
• "Woof" alternative
• Fido's response
• Kin of 'ruff!'
• -- -K (tyke's class)
• Remark from 43-Down
• Prefix for war and school
• ___-K (toddler's school)
• Boxer's comment
• Advice from 57-Across?
• Start to pay?
• Rottweiler's remark
• Opposite of "post-"
• Boxer's cry
• Collie's comment