The woman had building in garden (4)
I believe the answer is:
shed
This clue is a double definition.
'the woman had' is the first definition.
(she'd)
'building in garden' is the second definition.
(building for tools in a garden)
(Other definitions for shed that I've seen before include "Slough - outbuilding" , "Barn" , "made redundant" , "Separate" , "Outhouse for storing garden tools etc" .)