Possible Clues:

• Inflated claim coming from British tabloid
• What 105-Acrosses do
• What one's shot, including rook and crow
• Sing one's own praises to second class artist at midnight
• Dress up so as to show off
• Overlook the habit to swank?
• Boast, exaggerate
• Game requiring two cups and small weight
• Shoot a line
• Speak for yourself?