Possible Clues:

• Of animals, recorded line of descent
• Exercise like dance detailed in background
• Page given to editor I welcome, but not the last line
• Bloodline gives some dogs a liking for this before 24 down
• Dog's breeding history
• Pure-bred descent
• In a tizzy, gripe about daughter seen uncovered in family history
• Go round twisty ridge, making descent
• Line edited in letter by politician cut short
• High-class sports science award, we hear