Here are the possible solutions for level connections clue
Answer
Clue
Relevancy
ramps
Clue
Level connections
Definition
RAMP, to swindle, esp. by the practice of causing large, false increases in the price of shares etc. by dishonest means
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