Crossword Clue:

one who studies biostatistics

Answer	Crossword Clue
OCULIST	One who studies irises
YOGI	One who studies asanas and pranayama
HARRYPOTTER	Fictional wizard who studies at Hogwarts

CANARY	One who sings
ADMAN	One who pitches
ATTENDEE	One who shows
RAT	One who blabs
JUDGE	One who tries
OWER	One who charges
HEEDER	One who minds
PINER	One who yearns

ESSAYER	One who tries
TASTER	One who sips
ALUM	One who reunes
YOGI	One who meditates
HAWER	One who hesitates
GIVER	One who tithes
FREELOADER	One who mooches
JEERER	One who hoots

CENTER	One who snaps
EPICURE	One who discriminates?
CAT	One who litters
HEIR	One who succeeds
KEENER	One who wails
MOM	One who delivers
EELER	One who sniggles
STOOLIE	One who sings

BIGMOUTH	One who blabs
PROCURER	One who gets things
INTERN	One who makes rounds
LIFER	One who serves long?
INFIDEL	One who doesn't believe
PEST	One who 26-Across
REF	One who wears stripes
LOOTER	One who takes inventory?

SPY	One who bugs people?
SUER	One who prefers charges
UMPIRE	One who calls balls
TORO	One who sees red?
STOWAWAY	One who goes free?