Possible Clues:

• Blake's bright burners (with a Y)
• They're catty to a great extent as they get with this, Sir
• Big striped cats poetically burning bright
• Investing at last in banks creates strong economies
• With their stripes they sit back around Reginald
• Large striped cats
• E gets in the grist for the stripes
• Sir, get to the animals
• How but's back at birth like a mule
• Large cats