For Graeme Anderson, this should be the busiest time of the year.The Ayr Racecourse Clerk of the Course forever has April circled on his calendar as the one for sleepless nights.But now, like the rest of the sporting world, Anderson has been reduced to the role of bystander...watching from afar as his beloved track lies dormant.Last weekend, 19,000 race fans should have sold out Ayr’s stands for the Coral Scottish Grand National.And on Monday, the track’s flat season would have begun in earnest.But for Anderson and his devoted team of groundstaff, the hooves – and tractors – have fallen silent.The irony is not lost on Ayr lad Graeme, who has endured more hurdles than his very track since taking on the top job.When flooding wiped out the Ayr