Possible Clues:

• Relating to the sense of smell
• To do with the sense of smell
• Concerned with smell round large manufacturing plant
• I had to leave petrol plant -- it's to do with the smell
• One retreats from refinery; it's to do with the smell
• Concerned with smell? Look up to the plant
• Nearly all ancient works associated with a stink
• Relating to smell
• Pertaining to smell
• Concerned with odour from somewhat antiquated works