Old, wet and numb, confused and derelict
I believe the answer is:
tumbledown
'derelict' is the definition.
(I've seen this before)
'old wet and numb confused' is the wordplay.
'and' is a charade indicator (letters next to each other).
'confused' is an anagram indicator.
'old'+'wet'='oldwet'
'oldwet' put after 'numb' is 'numboldwet'.
'numboldwet' anagrammed gives 'TUMBLEDOWN'.
'and' is the link.
(Other definitions for tumbledown that I've seen before include "collapsed" , "unstable" , "in a dilapidated state" , "threatening to collapse" , "neglected" .)