Here are the possible solutions for makes a firm level surface clue
Answer
Clue
Relevancy
paves
Clue
Makes a firm, level surface
Definition
PAVE, to cover with material that forms a firm, level surface
law
Clue
Type of firm in "The Firm"
Definition
(Scots) low
fileclerk
Clue
Low-level law firm employee
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
Definition
disagreeable in odour or taste
tier
Clue
Management level or theater level
geoid
Clue
Imaginary surface coinciding with the earth's sea level
Definition
the figure of the earth's mean sea-level surface assumed to be continued under the land
