A veteran runner wearing an ‘Adam fig leaf’ costume saw the cheers from the crowd and the cash for his chosen charity roll in when he completed Sunday’s TCS London Marathon. Bob Deacon, 75, who ran his first marathon 42 years ago, crossed the finish line in 4hr 38min and was featured on BBC TV’s coverage more than once. And the Furneux Pelham resident, who has raised over £2,000 for Mencap, will return to the capital in 12 months for his 10th attempt after being a massive 32 minutes inside his good for age qualifying time for next year’s event. “Family reasons prompted me to approach Mencap wh…