Salesman back to see red bouquet (7)
I believe the answer is:
perfume
'bouquet' is the definition.
(perfume is a kind of bouquet)
'salesman back to see red' is the wordplay.
'salesman' becomes 'rep' (sales representative).
'back' shows that the letters should be reversed in order.
'to see red' becomes 'fume' (I've seen this in another clue).
'rep' reversed gives 'per'.
'per'+'fume'='PERFUME'
(Other definitions for perfume that I've seen before include "sweet-smelling liquid" , "What's pleasant-smelling" , "Pleasant smell" , "Fragrance, scent" , "Fragrant toiletry" .)