… some information on a Gonzalez figure (7)
I believe the answer is:
nonagon
'figure' is the definition.
(shape or figure with 9 sides)
'some information on a gonzalez' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'NONAGON' is hidden within 'information on a gonzalez'.
(Other definitions for nonagon that I've seen before include "Figure with nine, twenty-one Dn" , "regular figure" , "Nine-sided figure" , "geometric figure" , "Nine-sided polygon" .)