Possible Clues:

• 7 or 11, in craps
• Spontaneous
• Taking a turn out alone, missing one. Not surprising
• Uncultivated part of South Africa once including ancient city ...
• With 93 Down, urge
• Expected - appropriate - artless
• Kin of organic
• A turn with a half-century not put on
• Alan Turing partly decoded and was not affected
• Word with "beauty" or "disaster"