Dust around the farm (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
stud
'the farm' is the definition.
(stud farm is a kind of farm)
'dust around' is the wordplay.
'around' indicates an anagram.
'dust' is an anagram of 'STUD'.
(Other definitions for stud that I've seen before include "Form of poker game" , "Item designed to grip" , "Stallion kept for breeding" , "Stallion for breeding - fastener" , "Large-headed piece of metal - horse-breeding establishment" .)