Answer:

mccoy

Answer	Crossword Clue
MCCOY	One who hates Hatfield and the North leaving Minnesota and retiring after concert opener (5)
MCCOY	Enterprise medico
MCCOY	Hatfield hater

MCCOY	"Star Trek" medico
MCCOY	"Star Trek" doctor
MCCOY	Real thing
MCCOY	Enterprise doctor
MCCOY	Doctor whom Captain Kirk calls "Bones"
MCCOY	The real ...
MCCOY	Hatfield adversary
MCCOY	The real thing?

MCCOY	"Star Trek" sawbones
MCCOY	Starship Enterprise physician
MCCOY	Feud family member
MCCOY	Hatfield's enemy
MCCOY	Crewmate of Kirk and Spock
MCCOY	Real guy?
MCCOY	2009 Heisman Trophy finalist Colt
MCCOY	Kelley's "Star Trek" role

MCCOY	Doctor on the starship Enterprise
MCCOY	"Enterprise" medical officer
MCCOY	Hatfield foe
MCCOY	"Real" thing
MCCOY	The real .. (something genuine)
MCCOY	Legendary feuder
MCCOY	TV character who said, "I'm a doctor, not a bricklayer"
MCCOY	Doctor on the Enterprise

MCCOY	The real ..., best of its kind.
MCCOY	The real ....
MCCOY	The real thing: Slang.
MCCOY	Word for the real thing.
MCCOY	Tony Curtis TV role: 1975-76
MCCOY	"Tippecanoe" author: 1916
MCCOY	Genuine one
MCCOY	Real one

MCCOY	Hatfield's foe
MCCOY	A real man?
MCCOY	Real ...
MCCOY	Colleague of Kirk
MCCOY	Hatfield feuder