Possible Clues:

• Type of basketball shot
• Deaf characters find a road, as old soldiers do
• What old soldiers do
• Lighten up on holiday? That's what McArthur said old soldiers do!
• Flag mania on a street with European getting stuck in
• Diminish gradually
• Become weaker
• Trend for last game not to be at home will die out gradually
• Shrink sees something in each behaviour
• Die out