Possible Clues:

• Pretending to be
• Copying
• One in congress bottling it but making an impression
• Following one winning at chess: technology's involved
• Skill of many 'S.N.L.' cast members
• Copier business?
• Rubbish I put into one sort of porcelain that's taking off
• Taking off skirt, essentially, it's part of procreation
• Doing, so to speak
• I am one mime who's no good miming