Lateness excuse, often (7)
I believe the answer is:
traffic
(Other definitions for traffic that I've seen before include "Sort of light" , "Trade (in cars?)" , "Truck" , "Moving vehicles; trade" , "What uses road" .)
I believe the answer is:
traffic
(Other definitions for traffic that I've seen before include "Sort of light" , "Trade (in cars?)" , "Truck" , "Moving vehicles; trade" , "What uses road" .)