It's very right that I do business (5)
I believe the answer is:
ideal
'it's very right that' is the definition.
'ideal' can be an answer for 'it's very' (thesaurus). I'm unsure of the rest of the definition.
'i do business' is the wordplay.
'do business' becomes 'deal' (as in dealing with another business).
'i'+'deal'='IDEAL'
Can you help me to learn more?
(Other definitions for ideal that I've seen before include "Embodying perfection" , "Benchmark" , "Utopian; yardstick" , "Quite perfect, can't be improved on" , "Consummate" .)