For me and river carp the Shimano Oceana OC Baitrunner in 6000 or 8000 size is perfect. It does not have a "longcast" style spool but casts up to 100yds with a 3ozs weight smoothly. I use mine with 30lb braid and the drag and baitrunner have been faultless.
As for the line-clip I am not sure, I only use mine to hold things in place when not fishing!
The price is not bad either - about Β£110 if you shop around.
My 8000 OC is at least several years old now, has done a lot of sea fishing and topped with several carp to over 40lb on the river Lot, France.
This carp was caught on the 6000 OC......