Cyril's fancy words (6)
I believe the answer is:
lyrics
'words' is the definition.
(I know this)
'cyril's fancy' is the wordplay.
'fancy' indicates an anagram.
'cyrils' with letters rearranged gives 'LYRICS'.
(Other definitions for lyrics that I've seen before include "words to perform" , "Words of a pop song" , "Words used in songs" , "words in numbers" , "Short song-like poems" .)