I need a new poem by Virgil (6)
I believe the answer is:
aeneid
'poem by virgil' is the definition.
(I know that Aeneid is a epic)
'i need a new' is the wordplay.
'new' is an anagram indicator.
'i'+'need'+'a'='ineeda'
'ineeda' is an anagram of 'AENEID'.
(Other definitions for aeneid that I've seen before include "epic from the past" , "Virgil's epic Latin poem" , "Virgil narrative poem" , "Latin poetry" , "Work" .)