Sloped gardens in Kent sold at last (6)
I believe the answer is:
skewed
'sloped' is the definition.
'gardens in kent sold at last' is the wordplay.
'gardens' becomes 'kew' (Kew Gardens in London).
'in' is an insertion indicator.
'kent' becomes 'se' (Kent is part of the South East of England).
'at last' suggests the final letters.
The final letter of 'sold' is 'd'.
'kew' put within 'se' is 'skewe'.
'skewe'+'d'='SKEWED'
(Other definitions for skewed that I've seen before include "Not symmetrical" , "Turned or twisted around" , "Turned or twisted round" , "Turn at an angle" , "'Slanted, oblique (6)'" .)