Ranch enclosure (6)
I believe the answer is:
corral
'ranch enclosure' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for corral that I've seen before include "Livestock enclosure" , "American enclosure for horses" , "Shorten (book)" , "Western horse enclosure" , "Pen for cattle in the US" .)