### Clue: Railing in almost perfect road race (11)
### Answer: FULMINATION 
 ### Explanation: Definition: Railing
 "full"(perfect;not lacking in any respect) **minus its last letter**(almost …) + MI( "M1", the major road in England, with 1 substituted by its Roman numeral) + NATION(a race being a community of people with similar characteristics and culture who might be organised as a nation, though in modern times, the latter is more likely to consist of various races).