Coil of yellow hose pipe diameter stuff? If so then yes duct clearance.
There are those that say Openreach should be more pro-active at clearing ducts but the problem is on some ducts you clear it one week and it will be blocked the next. There are even some in Cornwall that are tidal.
If the blockage is under a junction and they need to dig down to clear it, this can also lead to delays as it is not an emergency and a council may only give roadworks permission a long way into the future.