Couch found in contents of attic (4)
I believe the answer is:
sofa
'couch' is the definition.
(I know that couch can be written as sofa)
'in contents of attic' is the wordplay.
'in' indicates the answer is hidden within the clue.
'SOFA' is hidden within 'contents of attic'.
'found' acts as a link.
(Other definitions for sofa that I've seen before include "Lounge" , "Wide padded seat" , "Area for sitting" , "Oafs (anag.)" , "Upholstered seat for two or more" .)