Cher ran about with the farmer (7)
I believe the answer is:
rancher
'the farmer' is the definition.
(rancher is a kind of farmer)
'cher ran about' is the wordplay.
'about' indicates anagramming the letters.
'cher'+'ran'='cherran'
'cherran' is an anagram of 'RANCHER'.
'with' is the link.
(Other definitions for rancher that I've seen before include "Cattle farmer in the Americas" , "North American cattle farmer" , "Stock farmer" , "US cattle farmer" , "Owner of a large farm" .)