Continue a poem modified to form introduction to fantasy? (4,4,1,4)
I believe the answer is:
once upon a time
'form introduction to fantasy?' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'continue a poem modified' is the wordplay.
'modified' indicates an anagram.
'continue'+'a'+'poem'='continueapoem'
'continueapoem' with letters rearranged gives 'ONCE UPON A TIME'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for once upon a time that I've seen before include "Tale opener?" , "Fairytale beginning" , "Start of a fairytale" , "Traditional start of a story" , "How to start of a children's story?" .)