High pitch of latest composition (8)
I believe the answer is:
falsetto
'high pitch' is the definition.
'falsetto' can be an answer for 'pitch' (I have seen 'Artificial pitch' mean 'falsetto' so perhaps 'pitch' could also mean 'falsetto'). I am unsure of the 'high' bit.
'of latest composition' is the wordplay.
'composition' is an anagram indicator (letters arranged or composed in a different order).
'of'+'latest'='oflatest'
'oflatest' with letters rearranged gives 'FALSETTO'.
Can you help me to learn more?
(Other definitions for falsetto that I've seen before include "High singing method" , "Forcedly high voice" , "Artificial pitch" , "High-pitched male voice" , "Abnormally high voice" .)