Climbing plant with fragrant flowers (5,3)
I believe the answer is:
sweet pea
'climbing plant with fragrant flowers' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for sweet pea that I've seen before include "Garden plant with brightly coloured flowers" , "Perfumed climber" , "Saccaharine legume for favourite flower" , "Fragrant flower" , "Fragrant climber" .)