Possible Clues:

• '22 across perhaps, but is not in such a sly way (7)'
• Very good, but is not in a cunning way
• Like a fox, inwardly isn't very good
• Possibly last in, and yes, like an angel
• Being virtuous is not commonly involved in being devious
• Isn't taken in by cunning? Very good
• Arch bridges are not perfect
• Very good, for instance, to trap build-up of lint
• Like John, Paul or George, isn�t taken in by cunning
• Very holy