Related Clues:

• Knock one out of the park
• Clock
• Word that makes grammarians cringe
• Powerful blow
• Isn't, nonstandardly
• Emphatic court tactic
• Enlightens
• Boxcars component
• Fats Waller's '___ Misbehavin''
• Pack quantity, perhaps
• Isn't ungrammatical?
• Comic-strip sound of impact
• Inverted nine
• Hard-hitting team?
• Blockbuster