Place with support for couch (6)
I believe the answer is:
settee
'couch' is the definition.
(settee is a kind of couch)
'place with support' is the wordplay.
'place' becomes 'set' (setting is a kind of placing).
'with' is a charade indicator (letters next to each other).
'support' becomes 'tee' (tee is a kind of support).
'set'+'tee'='SETTEE'
'for' acts as a link.
(Other definitions for settee that I've seen before include "chair" , "solver, might you say?" , "Intended recipient of my work, so to speak" , "Get a seat" , "Item of furniture" .)