Captivating nymph in complicated cosplay (7)
I believe the answer is:
calypso
'captivating nymph' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'complicated cosplay' is the wordplay.
'complicated' indicates anagramming the letters (a complex or confusing ordering of the letters).
'cosplay' anagrammed gives 'CALYPSO'.
'in' is the link.
Can you help me to learn more?
(Other definitions for calypso that I've seen before include "West Indian music - nymph who kept Odysseus on her island" , "Improvised song of the Caribbean" , "character from Odyssey" , "who detained Odysseus?" , "West Indian music style" .)