What's exciting to money-maker — embracing Conservative financial system (6,7)
I believe the answer is:
market economy
'financial system' is the definition.
(market economy is a type of financial system)
'what's exciting to money-maker embracing conservative' is the wordplay.
'what's exciting' indicates anagramming the letters.
'embracing' indicates putting letters inside.
'conservative' becomes 'C' (UK political abbreviation).
'to'+'money'+'maker'='tomoneymaker'
'tomoneymaker' with letters rearranged gives 'marketeonomy'.
'marketeonomy' going around 'c' is 'MARKET ECONOMY'.
(Other definitions for market economy that I've seen before include "System supposed to balance supply and demand" , "System in which prices should be determined by competition" , "It depends on competition rather than regulation" , "Free price competition" .)