Dutch man has a couch (5)
I believe the answer is:
divan
'a couch' is the definition.
(I know that divan is a type of couch)
'dutch man' is the wordplay.
'dutch' becomes 'd' (common abbreviation).
'man' becomes 'ivan' ().
'd'+'ivan'='DIVAN'
'has' is the link.
(Other definitions for divan that I've seen before include "Sideless, backless couch" , "Piece of furniture" , "Viand (anag.)" , "Backless seat; bed" , "resting place" .)