Idea from the two-speed writer (5)
I believe the answer is:
theme
'idea' is the definition.
(I know that idea can be written as theme)
'the two-speed writer' is the wordplay.
'two speed writer' becomes 'me' (I can't justify this - if you can you should give a lot more credence to this answer).
'the'+'me'='THEME'
'from' is the link.
Can you help me to learn more?
(Other definitions for theme that I've seen before include "Musical motif" , "tune used in Enigma Variations?" , "sort of tune" , "Subject matter, motif" , "He met (anag) - subject" .)