Possible Clues:

• One accountant after money for plant
• Eg, cabbage, turnip, rape
• Turnip and cabbage genus
• Top officers in charge accompanying a Swede, perhaps
• May be greens though starting to be yellow
• Greens yellow on top
• Yellow to start with, but may be all green (8)
• Swede, for example, with metal one can cut
• Put money on one accountant getting plant
• After it starts yellow, I see a green end