Related Clues:

• Standard example of opera, with ending drawn out
• Standard style of architecture lacks a name
• 'Service not included' is the usual thing
• Median
• Face value; equal standing
• Backing for carpet is the normal amount
• Acceptable standard
• Mean standard for a pro
• Standard choice between central characters
• O'Neill, ex-Test batsman
• Average knock-up
• Rating of strokes required for hole (golf)
• Usual standard
• Standard contribution to Sun or Mirror
• Less than half of inlaid floor provides level footing