Here are the possible solutions for level and smooth clue
Answer
Clue
Relevancy
flat
Clue
Level and smooth
Definition
to make flat
sade
Clue
"Smooth Operator" smooth operator
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
