Possible Clues:

• Bruin this ancestor
• His progeny must be tolerant, they say
• One traced by tree favouring a beer when drunk
• Ancestor following row embracing endless revolt
• Perhaps grandfather's warning to stock market speculator
• Addressed to Teddy, could it be someone up the line?
• Ancestor's warning on creature of the woods
• Warning beast gives one found up the tree?
• Old family member shouted warning after driving over animal
• Older relative links warning with wild animal