Related Clues:

• "Be glad to"
• Officially bar from entry
• Stop O.K.'ing
• Legally stop
• Axe competitor
• "OK, fine"
• Unerring
• See 25 Across
• Casual affirmative
• ''Certainly''
• "OK!"
• 'Okay'
• Definite
• U.N. chief ___ Ki-moon
• ''Naturally!''