Related Clues:

• Swell, to surfers
• Undoubtedly
• ''Be happy to!''
• Victorious shout
• Radioactivity unit
• "So cool!"
• It's ''positively'' hidden four times in this puzzle
• "Way cool!"
• ''Cool!''
• ''Sure thing!''
• "Sure"
• ''Super!''
• Super cool
• 'Definitely!'
• Nifty, to The Beave