Solutions confidently expect credit has 9 entries with similar clues

• 4-letter words
• averAffirm confidently
• avowState confidently
• 5-letter words
• crowd*We will, we will rock you!* "Walk confidently onto the field while the ... cheers on!"
• 6-letter words
• assurePromise confidently
• avouchState confidently
• affirmState confidently
• 7-letter words
• professState confidently
• warrantState confidently
• 13-letter words
• in-the-groovePerforming confidently