Keep out of the saloon (3)
I believe the answer is:
bar
This clue is a double definition.
'keep out' is the first definition.
(I've seen this in another clue)
'the saloon' is the second definition.
(saloon is a type of bar)
'of' is the link.
(Other definitions for bar that I've seen before include "Except; counter" , "A pub counter or iron rod" , "Saloon" , "Prohibit; pressure unit" , "Rigid rod" .)