Climbing plant's perfumed fruit cut back (5,3)
I believe the answer is:
sweet pea
'climbing plant's' is the definition.
(I've seen this before)
'perfumed fruit cut back' is the wordplay.
'perfumed' becomes 'sweet' (synonyms).
'fruit' becomes 'pear' (pear is a kind of fruit).
'cut back' means to remove the last letter.
'pear' with its final letter taken away is 'pea'.
'sweet'+'pea'='SWEET PEA'
(Other definitions for sweet pea that I've seen before include "bloomer" , "Climbing garden plant - saw tepee (anag)" , "Climbing pant" , "Climbing plant with fragrant flowers" , "Saccaharine legume for favourite flower" .)