Possible Clues:

• The colour of clarets
• The colour of clarets?
• Allow small Mini, say, to start off red
• 12 linked with 22 is far from 2
• In other words, a rogue — but not very immoral
• Wound allowed to get red
• Shameful tone?
• Red mark on top half of letter
• Like an infamous "A"
• Red ends of electrical wire seen in plug