Won't appear in the nude turn, which is unusual (8)
I believe the answer is:
unwonted
'is unusual' is the definition.
(thesaurus)
'won't appear in the nude turn' is the wordplay.
I cannot quite see how this works, but
'won't' could be 'wont' and 'wont' is present in the answer.
an anagram of 'nude' is 'uned' which is present in the remaining letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
'which' is the link.
Can you help me to learn more?
(Other definitions for unwonted that I've seen before include "Unaccustomed" , "Not characteristic" , "not typical" , "Atypical, not usual" , "Not habitually" .)