Related Clues:

• Horse with endurance
• Kind of racehorse for which going isn't suited?
• Supporter in the long run?
• Tabloid accepts the old one has stamina
• Not a goer in the race?
• Perhaps guest's one with lasting qualities
• Guest competitor who should do well in the long run
• Persistent person
• One not giving up
• Person with perseverance
• Yes -- runs on way for runner who won't give up
• One unlikely to give up lead after overtaking you once
• Horse perhaps that's not much of a goer
• Obedient dog, at times
• Distance racehorse