Related Clues:

• Row after doctor’s introducing iodine that’s more contaminated
• Not so forthright
• More evasive and tricky
• More grubby
• Craftier (var.)
• Using more subterfuge
• Harder to outfox
• Drunk rider admits shooting it up - that's even murkier
• More cunning: Var
• Rejected free bank getting more unpleasant
• 'The ___ the theft, the sweeter the honey': Edmund Clarence Stedman
• Erase ink smudges, getting more shady
• More furtive adult missed by violent killer
• Not as naïve
• More cunning vacuous solicitor accepts perjury?