Possible Clues:

• Still ship not launching on time
• Nonreactive, as some gases
• Sluggish, still
• Processed nitre is chemically inactive
• I still rent this
• Still enough to make nitre with this
• That's still enough to make 12across over the North
• Like group 18 elements
• Disinclined to act in plainer terms
• Supplement is losing dollars still