ACCIDENT; CLEANUP BLOCKS AT LEAST 2 LANES  9 MINOR INJURIES    WB SLOW DEER PARK AV PAST BELMONT AV, AT RT 107, WANTAGH AV TO MEADOWBROOK PKWY, THEN HEAVY BUT MOVING PAST GRAND AV TO HEMPSTEAD LAKE,   SLOW CENTRAL AV ONTO THE CROSS ISLAND PKWY.