Cold and damp, as a basement
I believe the answer is:
dank
'cold and damp as a basement' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dank that I've seen before include "(Of atmosphere) wet and unpleasant" , "Cold and moist" , "Unpleasantly cold and humid" , "Unpleasantly cool and damp" , "Clammy, damp" .)