Whose twin somehow is never spotted (4-5)
I believe the answer is:
snow-white
'never spotted' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives sometimes define each other.
'whose twin somehow' is the wordplay.
'somehow' indicates anagramming the letters.
'whose'+'twin'='whosetwin'
'whosetwin' is an anagram of 'SNOW-WHITE'.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for snow-white that I've seen before include "Associate of dwarfs" , "Friend of seven dwarfs" , "Seven dwarfs heroine" , "Completely pure - fairytale heroine" , "Fairytale girl protected by seven dwarfs" .)