Possible Clues:

• The male would get bigger, full of energy -- one growing up in the country?
• Thicket where dog got tangled
• Irritability in hard dispute that's growing, by the way
• It may extend about a yard
• Line of entwined bushes and trees
• Natural boundary providing advantage in hotel dispute
• Line of bushes that man would expand round rear of house
• Shrubs perhaps fellow would cultivate round rear of cottage
• Property divider
• Boundary dispute?