Spicy sausage: condiment on top of it (9)
I believe the answer is:
pepperoni
'spicy sausage' is the definition.
(I've seen this before)
'condiment on top of it' is the wordplay.
'condiment' becomes 'pepper' (I've seen this before**).
'top of' says to take the initial letters.
The initial letter of 'it' is 'i'.
'pepper'+'on'+'i'='PEPPERONI'
(Other definitions for pepperoni that I've seen before include "Type of sausage, a pizza topping" , "Highly-seasoned sausage" , "something spicy" , "Butterfly-attracting shrub" , "what may be called a banger" .)