Possible Clues:

• Fiddle around edges, flushed
• Clubs throw minors out, looking embarrassed
• Looking embarrassed as study oversteps limits
• Crook's working in the shade
• Red skin around lips
• Lips, after cosmetic's first applied, may be this
• Prisoner goes around edges with colour
• Red China started working across borders
• Some tinted spectacles have acrylic rims, only they must be red
• After wrong cut, lad's looking embarrassed