Put the stand by the seat (6)
I believe the answer is:
settee
'the seat' is the definition.
(settee is a kind of seat)
'put the stand by' is the wordplay.
'put' becomes 'set' (setting is a kind of putting).
'the stand' becomes 'tee' (I've seen this in other clues).
'by' says to put letters next to each other.
'set'+'tee'='SETTEE'
(Other definitions for settee that I've seen before include "Piece of furniture" , "two-seater?" , "Long indoor seat" , "Sofa, couch" , "Intended recipient of my work, so to speak" .)