Related Clues:

• That's not straight, by about also, perhaps
• 35 across
• Determined on being a crook
• The cat got back like this when cross
• Aptitude for being crooked
• Curved in current fashion?
• On the way round he had got one's back up
• Was currently short a bit of the way round, perhaps
• The car smash he had put his back up
• Aptitude for being a crook
• Traveled like a snowball
• Natural inclination
• Perhaps by-pass back and forth?
• Hunched (over)
• Toss about, as ideas