Crossword Puzzle How some tourneys are run

Clue: How some tourneys are run

Rundown areas (e.g. GHETTOES with 8 letters)
Grizzly who runs ahead to make sure there aren't any traps? (BEARSCOUT with 9 letters)
Rundown urban area (SLUM with 4 letters)
Rundown area (e.g. GHETTO with 6 letters)
Rundown urban areas (SKIDROWS with 8 letters)
Running area (TRACK with 5 letters)
County between Cornwall and Somerset (DEVON with 5 letters)
Argentine area (PAMPAS with 6 letters)
Vehicle with two runners (SLED with 4 letters)
--- Brothers of "Long Train Runnin'" fame (DOOBIE with 6 letters)