Answer: leech

AnswerCrossword Clue
LEECH

Bloodletter's critter

LEECH

Hanger-on

LEECH

Sponge

LEECH
Moocher
LEECH
Bloodsucker
LEECHAnnelid useful to ancient doctors
LEECHAnnelid used in hirudotherapy
LEECHClinging type
LEECHParasite
LEECHSucker at the lake
LEECHSwamp parasite
LEECHLittle bloodsucker
LEECHBlood-loving worm
LEECHParasitic sort
LEECHMooch
LEECHPhysicians' worm, once
LEECHFreeloading sort
LEECHBloodsucking critter
LEECHFreeloader
LEECHIt's hard to get rid of one
LEECHOne who won't let go
LEECHParasitic person
LEECHWorm once used for bloodletting
LEECHOne clinging to another for gain.
LEECHParasite.
LEECHMargaret ..., Pulitzer Prize winner for "Reveille in Washington."
LEECHBloodsucker.
LEECHHanger-on.
LEECHOld-time physician.
LEECHPhysician of yore.
LEECHOld-time doctor.
LEECHSycophant.
LEECHDoctor, old style.
LEECHPhysician, old style.
LEECHSail part
LEECHSail edge
LEECHParasitic type
LEECHSponger
LEECHBloodletter's need
LEECHSucker