Related Clues:

• Decidedly
• Completely? Only somewhat
• "It is true"
• Fashionable woman seen with duke? Quite so
• Completely gave up nicotine at the end
• Popular exploit, without a doubt
• Certainly, actually
• Quite popular act
• Definitely how a thought may be acted out
• "I won't hear any excuses!" ... also, a clue to the three other longest Across answers
• "Ain't that the truth!"
• 'That's ___ all right'
• Certainly at home with something to be done
• Popular action, no doubt
• The fashionable thing to do? Certainly