Dirt in lift upset husband (5)
I believe the answer is:
filth
'dirt' is the definition.
(I know that dirt can be written as filth)
'lift upset husband' is the wordplay.
'upset' indicates an anagram.
'husband' becomes 'h'.
'lift' anagrammed gives 'filt'.
'filt'+'h'='FILTH'
'in' acts as a link.
(Other definitions for filth that I've seen before include "Dirt, obscene talk" , "Muck" , "Disgusting dirt or obscenity" , "Squalor" , "Repulsive dirt" .)