Cattle in good order (4)
I believe the answer is:
neat
This clue is a double definition.
'cattle' is the first definition.
(thesaurus)
'good order' is the second definition.
(I've seen this before)
'in' is the link.
(Other definitions for neat that I've seen before include "Finished" , "Tidy, well-ordered" , "straight to the barmaid" , "Trim - undiluted" , "not mixed with anything else" .)