Time fitted in to brush each scented plant (5,3)
I believe the answer is:
sweet pea
'scented plant' is the definition.
(sweet pea is a fragrant plant)
'time fitted in to brush each' is the wordplay.
'time' becomes 't' (abbreviation).
'fitted in' is an insertion indicator.
'to brush' becomes 'sweep' (synonyms).
'each' becomes 'ea' (abbreviation).
't' put inside 'sweep' is 'sweetp'.
'sweetp'+'ea'='SWEET PEA'
(Other definitions for sweet pea that I've seen before include "A wee pest on fragrant climbing plant" , "Garden plant with pastel-coloured flowers" , "Peseta we paid for climbing garden flower" , "Celestial source of fluctuating radio waves" , "Climbing plant with fragrant flowers" .)