For each one, there's a supernatural beauty (4)
I believe the answer is:
peri
'a supernatural beauty' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe there's a link between them I don't understand?
'for each one' is the wordplay.
'for each' becomes 'per' (per person).
'one' becomes 'i' (Roman numeral).
'per'+'i'='PERI'
'there's' acts as a link.
Can you help me to learn more?
(Other definitions for peri that I've seen before include "Fairy could be ripe" , "Beautiful fairy" , "Fairy of Persian myth" , "Persian fairy or genie" , "Prefix denoting 'around'" .)