Brigadier's wild rage on the road (6)
I believe the answer is:
gerard
'brigadier's' is the definition.
Both the definition and answer are singular nouns.
Perhaps there's an association between them I don't understand?
'wild rage on the road' is the wordplay.
'wild' indicates an anagram.
'on' is a charade indicator (letters next to each other).
'the road' becomes 'rd' (abbreviation for road).
'rage' anagrammed gives 'gera'.
'gera'+'rd'='GERARD'
Can you help me to learn more?
(Other definitions for gerard that I've seen before include "Baron Francois ______, Napoleonic court painter" , "Chap" , "Man" , "Man's name" .)