Cyril's odd ode (5)
I believe the answer is:
lyric
'ode' is the definition.
(thesaurus)
'cyril's odd' is the wordplay.
'odd' is an anagram indicator.
'cyril' anagrammed gives 'LYRIC'.
(Other definitions for lyric that I've seen before include "something to sing about? On the contrary" , "Part of a libretto" , "Poem - verse - London theatre" , "Type of poem" , "Expressing the poet's emotions" .)