Convincing suggestion for businessman? (6)
I believe the answer is:
cogent
'convincing' is the definition.
(similar in meaning)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for cogent that I've seen before include "Strong" , "Well argued, compelling" , "'Clear and logical, argument say (6)'" , "'Powerfully persuasive, argument say (6)'" , "Clearly argued" .)