Related Clues:

• Is emphatic
• Strives
• GOES HEAD TO HEAD (WITH)
• Contests
• Won't take no for an answer
• Stands firm
• Won't take ''no'' for an answer
• Goes up (against)
• Jostles (for)
• Tries for a title
• Competes (for)
• Maintains persistently
• Competes, carries on rivalry
• Strives with, rivals
• Demands firmly