Gardened at an angle?
I believe the answer is:
raked
This clue is a double definition.
'gardened' is the first definition.
(I've seen this before)
'at an angle?' is the second definition.
(I've seen this before)
(Other definitions for raked that I've seen before include "Set at a sloping angle" , "Cleared up leaves, say" , "(Of a stage) sloped" , "inclined towards the stern" , "Gardened" .)