Extraordinary individual (8)
I believe the answer is:
singular
This clue might be a double definition.
'extraordinary' is the first definition.
(similar in meaning)
'individual' is the second definition.
Both the answer and definition are adjectives. Maybe there's an association between them I don't understand?
Can you help me to learn more?
(Other definitions for singular that I've seen before include "Individual; extraordinary" , "distinctive" , "Atypical" , "Strange - unique" , "As sheep may be, but not cattle or horses" .)