He pours out music from his lyre (7)
I believe the answer is:
orpheus
'music from his lyre' is the definition.
'Orpheus' can be an answer for 'music' (thesaurus). I'm not sure about the 'from his lyre' bit.
'he pours out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'he'+'pours'='hepours'
'hepours' is an anagram of 'ORPHEUS'.
Can you help me to learn more?
(Other definitions for orpheus that I've seen before include "In Greek myth, poet who followed Eurydice into the Underworld" , "Singer/poet in Greek mythology" , "In Greek myth he sought his wife Eurydice in the Underworld" , "Underworld figure" , "Greek lyrist" .)