Cart around the yard! (4)
I believe the answer is:
dray
'cart' is the definition.
(a cart without sides for delivering heavy loads)
'around the yard' is the wordplay.
'around' shows that the letters should be reversed in order.
'yard' written backwards gives 'DRAY'.
(Other definitions for dray that I've seen before include "Cart for carrying heavy goods" , "Cart to carry heavy loads" , "delivery vehicle" , "Squirrel's home" , "Brewery wagon" .)