Related Clues:

• Quite capable
• Sharp or severe
• Sophisticated
• Quite sharp, as a pain
• Well-tuned
• Angle less than 90 degrees
• Highly capable
• Very serious
• Feel the pain
• On the bright side
• Type of angle
• Classic TV's Maxwell
• Incisive
• Sharp, as vision
• Man in C.O.N.T.R.O.L.