Wine business takes belief (5)
I believe the answer is:
credo
'belief' is the definition.
(credo is a kind of belief)
'wine business' is the wordplay.
I cannot quite understand how this works, but
'wine' could be 'red' (red is a type of wine) and 'red' is present in the answer.
'business' could be 'co' (short for company) and 'co' is present in the leftover letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
'takes' acts as a link.
Can you help me to learn more?
(Other definitions for credo that I've seen before include "Apostles' beliefs" , "Part of the service" , "Words of believer" , "Words to live by; belief" , "Part of the Latin Mass" .)