Figure offered by corporation accepting a prize novel (9)
I believe the answer is:
trapezium
'figure' is the definition.
(trapezium is a kind of figure)
'corporation accepting a prize novel' is the wordplay.
'corporation' becomes 'tum' (I've seen this before).
'accepting' means one lot of letters goes inside another.
'novel' is an anagram indicator.
'a'+'prize'='aprize'
'aprize' is an anagram of 'rapezi'.
'tum' placed around 'rapezi' is 'TRAPEZIUM'.
'offered by' is the link.
(Other definitions for trapezium that I've seen before include "Quadrilateral with two parallel sides of unequal length" , "Four-sided figure" , "Certainly no square" , "Quadrilateral with pairs of unequal parallel sides" , "Form of quadrilateral" .)