Related Clues:

• Simpleton, one short of being sharp?
• Note name, around time of hearing
• Unaffected; colour
• Illegitimate in respect of birth, receiving query regularly
• Normal, like Cumberland's son?
• Turning brown — Russian river, as is to be expected
• Unrefined person certain to succeed
• Accidental burp is off-limits during birth
• (Of fabric) off-white
• Ordinary person regarded as certain to qualify
• Sign on staff lacking sophistication
• Nation's leaders attending mass meeting of workers, as you'd expect
• Unrefined game on the rise in part of S Africa once
• Not flat, as one might expect
• Friend of the Earth? Doing without energy, it goes without saying