Related Clues:

• Free from doubt
• -
• 'Step aside, I'll do it'
• Ratify
• 'That'd be fine'
• 'Why not?!'
• 'You got it'
• Doubtless
• Not spectacular
• Nothing to write home about
• 'No prob'
• Less than stellar
• "Without a doubt!"
• 'I'd like to give it a try'
• Not exactly a world-beater