Possible Clues:

• Czech, say, is so concerned with sound around bathroom
• The __ Dances, series of 16 orchestral works by Dvorák
• Eastern European language, such as in Dvorak's 'Dances'
• Language in the manner of a noisy boom outside small room
• Group of people in Eastern Europe to get icon designed by Poles and Russians in a manner of speaking
• Eastern European river in oil disaster, far side obscured
• Describing some languages wrongly could be vocal sin
• European oil spillage almost engulfing river
• Pole is this short helping to cross river
• Poles are left on river, thus to be seen around