Answer: watson

AnswerCrossword Clue
WATSONHolmes's assistant
WATSONFamous fictional doctor.
WATSONDoyle's doctor
WATSON"Elementary, my dear ..."
WATSONMan of "elementary" learning
WATSONHolmes's biographer
WATSONAide to Bell or Holmes
WATSONSleuth's companion
WATSONDoctor played by Nigel Bruce
WATSONErstwhile boarder in Baker Street.
WATSONFive-time British Open champ
WATSONPsychologist who launched behaviorism
WATSONBell's first phone-call recipient
WATSONHolmes' cohort
WATSONHolmes' companion
WATSONLongtime IBM head Thomas
WATSONCo-discoverer of the contents of the circled letters
WATSONFictional biographer
WATSONHolmes's colleague
WATSONGolfer Tom
WATSONDoyle's narrator
WATSONNicklaus rival
WATSONHolmes's companion
WATSONBell's first phone call recipient
WATSONHolmes's confidant
WATSONDoctor of detective fiction
WATSONEmma of the Harry Potter movies
WATSONDoyle's Doctor
WATSONFirst phone-call recipient
WATSONSherlock's assistant
WATSONHolmes cohort
WATSONSherlock Holmes' colleague
WATSONJude Law, in "Sherlock Holmes"
WATSONBritish Open winner Tom
WATSONCrick's partner