Figure outrageously paid zero tax initially (9)
I believe the answer is:
trapezoid
'figure' is the definition.
(trapezoid is a kind of figure)
'outrageously paid zero tax initially' is the wordplay.
'outrageously' indicates an anagram (I've seen this in other clues).
'initially' indicates taking the first letters.
The first letter of 'tax' is 't'.
'paid'+'zero'+'t'='paidzerot'
'paidzerot' anagrammed gives 'TRAPEZOID'.
(Other definitions for trapezoid that I've seen before include "Figure" , "Prize toad (anag.)" , "Type of quadrilateral" , "Form of quadrilateral" .)