Sloth maybe stopping halfway across garden (4)
I believe the answer is:
eden
'garden' is the definition.
(I've seen this before)
'sloth maybe stopping halfway across' is the wordplay.
'sloth maybe' becomes 'edentate' (sloth is an example of an edentate animal).
'stopping halfway across' suggests halving the letters.
'edentate' with half the letters taken is 'EDEN'.
(Other definitions for eden that I've seen before include "Place of complete bliss" , "Adam and Eve home" , "Early garden - Cornish project" , "project in the south west" , "Former British PM - unspoilt paradise" .)