Not just damp (3)
I believe the answer is:
'not just damp' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for wet that I've seen before include "Rainy; feeble person" , "Saturated; rainy" , "Moisture; feeble (colloq.)" , "Saturated with liquid" , "Moistened" .)