Form I see creating great work (7)
I believe the answer is:
classic
'great work' is the definition.
(eg a literary classic)
'form i see' is the wordplay.
'form' becomes 'class' (synonyms).
'see' becomes 'C' (the word for the letter, according to Chambers).
'class'+'i'+'c'='CLASSIC'
'creating' acts as a link.
(Other definitions for classic that I've seen before include "Model" , "Definitive; of recognised excellence" , "The Derby or The Oaks, for example" , "of enduring significance" , "Oaks perhaps" .)