Ok here's what a typical inbound call we use in our Co. to a CTAF & or R
XXX traffic XXX IFR B200 25 miles to the SW (sometimes via a radial if an omni is being used) passing 5500 ' manovering for a 5 mile final rwy 27, circuit 15, traffic XXX for Eg. That's if the App is in VMC if not then I add minimal info to enhance the above for the benifit of IFR pilot/s inbound although we ought to know about each other via ATC. Now I believe that's enough info at first for anyone else inbound that maybe coming from a SW or W direction, further mental picture forming can take place for all if there is a belief that a possible conflict exists. Yr eyes & yr ears are yr best defence. I'm not a huge fan of straight in Appr's but when it's of an urgent nature I weigh up the added risks on an individual basis & conduct one as I see fit.
Remember, nothing is ever that urgent in aviation & there are no dumb questions when it comes to aviation, this I have learnt over the years.
Wmk2