"El este un politician deștept."
Translation:He is a smart politician.
El este un politician deștept. He is a smart/clever politician deştept can mean smart, clever, canny as an adjective, as a noun "un deştept" it can mean a clever man. I don't like using smart because it can be derogatory as well, as in "smart Alec " In which case you would use the word şmecher in Romanian. Perhaps el est un politician şmecher would be more appropriate when applied to politicians.