Bill a small business making condiment (7)
I believe the answer is:
tabasco
'condiment' is the definition.
(Tabasco is an example)
'bill a small business' is the wordplay.
'bill' becomes 'tab' (a tab is a bill at a bar).
'small' becomes 's' (abbreviation - e.g. clothes size).
'business' becomes 'co' (short for company).
'tab'+'a'+'s'+'co'='TABASCO'
'making' acts as a link.
(Other definitions for tabasco that I've seen before include "ASBO Act (anag) - hot stuff!" , "Chilli sauce" , "Spicy pepper sauce" , "A hot spicy sauce" , "Hot sauce made from capsicums" .)