Possible Clues:

• Becoming extremely lively, appear at front
• Good-looking
• It's proper to appear with the end of 34 across
• Imagine setter's embracing left and right
• The proper way first to look at this
• Decorous, in good taste
• Becoming cunning about oriental compiler's return
• Becoming on the face of it neither popular nor good
• Appropriate, as behavior
• Part of the foot