Step over dogs, say (4)
I believe the answer is:
pets
'dogs say' is the definition.
'step over' is the wordplay.
'over' is a reversal indicator.
'step' reversed gives 'PETS'.
(Other definitions for pets that I've seen before include "Domestic animals" , "Domesticated animals" , "Little darlings - step on them" , "Animals at home" .)