Here are the possible solutions for undesirable tank level clue
Answer
Clue
Relevancy
empty
Clue
Undesirable tank level
Definition
to remove the contents of
atari
Clue
Pioneering game company behind Tank and Tank II
shellfish
Clue
"... ___: Fill up a tank with gas, then fill up another tank with bass"
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
acne
Clue
Undesirable spots
Definition
a skin disease caused by inflammation of the sebaceous follicles, esp. on the face, neck, and shoulders
