Related Clues:

• Purple ___ (flowery writing)
• Rhyme-free writing
• Poetry's opposite
• "Purple" writing
• Novelist's output
• Local dialect
• It's not poetry
• What did the piano get up to? Being the opposite of 1 down
• Not inversely blooming soft, by the sound of it (5)
• Not the sound of verse for amateurs
• Ordinary lines
• Vulgar parlance? The same, with gap left out
• Vulgar words recur with naval orders
• Native tongue - dialect
• Plain speaking