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Ole hyvä! One way verbal expression can be clumsy is the lack of fluency. You can speak English fluently and make the correct word choices on the fly. That makes your English completely adequate for podcasts. An accent not used by any group of native English speakers is not a problem. There are some accents in Britain that sound foreign to me despite the fact that the users of those accents follow every general rule of English pronunciation and intonation. Very few of us are capable of sounding like professional radio hosts even in our own native tongue.

That is true, his expression was without clumsiness. Accent is a different from people who are not native English speakers. But in all, listening and understanding such people is not a problem when they speak.