Someone bending over in part of garden? (5)
I believe the answer is:
bower
I believe this is a double definition.
'someone bending over' is the first definition.
(someone who bows)
'part of garden?' is the second definition.
(shaded area in a garden)
'in' is the link.
(Other definitions for bower that I've seen before include "Shady garden place" , "Arbour" , "Leafy shelter" , "One who shows respect" , "greenery?" .)