Here are the possible solutions for military level clue
Answer
Clue
Relevancy
ozone
Clue
Low-level pollution or high-level protection
Definition
an allotropic form of oxygen present in the atmosphere
ptomaineconcourse
Clue
Warning sign at a train station's food court? (NOTE: The original sign, without my additions, actually exists. It's in Grand Central Terminal in NYC, on the lower level — the food court level. The sig
rank
Clue
Class, level or class level
Military level
Definition
disagreeable in odour or taste
tier
Clue
Management level or theater level
airplane
Clue
A French military strategist described it in 1918 as "an interesting toy" but "with no military value"
Definition
a winged aircraft propelled by jet engines or propellers
