Barrier stored in shed generally (5)
I believe the answer is:
hedge
'barrier' is the definition.
(I know that hedge is a type of fence)
'stored in shed generally' is the wordplay.
'stored in' indicates the answer is hidden within the clue.
'HEDGE' is hidden within 'shed generally'.
(Other definitions for hedge that I've seen before include "Stall" , "Living barrier" , "Border of vegetation" , "Shrub boundary fence" , "Boundary of field" .)