Answer:

pinna

Answer	Crossword Clue
PINNA	Feather or wing
PINNA	Feather
PINNA	Anatomical ear part

PINNA	Frond part
PINNA	Site of many a piercing
PINNA	Leaf section
PINNA	Feather.
PINNA	Projecting part of the ear.
PINNA	Flipper.
PINNA	A feather.
PINNA	Auricle or feather.

PINNA	Leaflet: Bot.
PINNA	Feather: Zool.
PINNA	A feather, in zoology.
PINNA	Auricle: Anat.
PINNA	Wing or fin.
PINNA	Winglike part
PINNA	Feather, wing or fin
PINNA	External ear

PINNA	Mollusk of warm seas
PINNA	Auricle
PINNA	Feather, zoologically
PINNA	Outer ear
PINNA	Fin or flipper
PINNA	Ear: Bot.

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.