Possible Clues:

• A position for those who sometimes demand severe cuts from 19 down and 9 across all over the place (6'1,5)
• 19 down and top secret characters in 27 across mostly offering a position for those who expect cuts (6'1,5)
• Cutting staff and professorship - it's needed to guarantee someone gets a good clip around the ear (6'1,5)
• Trim figures with parlour piece had a close shave there (6'1,5)
• Sells drink to complicated Serb with official position in cutting room (6'1,5)
• It's where all the cuts are performed by trimmer with small official position
• Place to get a buzz?