Financial business ruined by latest trend (9)
I believe the answer is:
brokerage
'financial business' is the definition.
(I've seen this before)
'ruined by latest trend' is the wordplay.
'ruined' becomes 'broke' (breaking is a kind of ruining).
'by' means one lot of letters go next to another.
'latest trend' becomes 'rage' (rage is a kind of trend. I am not sure about the 'latest' bit.).
'broke'+'rage'='BROKERAGE'
Can you help me to learn more?
(Other definitions for brokerage that I've seen before include "agent's commission" , "Payment to agent" , "Business that acts as intermediary between buyer and seller" , "Dealer's commission" , "Securities firm" .)