Crossword Clue:

a Greek letter

Answer	Crossword Clue
TAU	A Greek letter
PICKSUPTHETA	Lifts a Greek letter?
STICKINTHEMU	Add a Greek letter?

PHI	Greek letter on a key
TAU	Greek letter shaped like a cross
OMEGA	Greek letter shaped like a horseshoe
TAKESITONTHECHI	Endures hardship atop a Greek letter?
PHI	Letter voiced by a Greek giant?
PSI	Greek letter that looks like a pitchfork
WORNDOWNTOTHENU	Eroded as far as a Greek letter?
PSI	Greek letter that looks like a trident

DELTA	Airline whose name is a Greek letter
RHO	Greek letter that looks like a "P"
ETA	Greek letter that's a symbol for viscosity
RHO	Greek letter that looks like a P
PSI	Greek letter that begins with a silent letter
PSI	Greek letter that sounds like a deep breath
GNU	Animal whose name sounds like a Greek letter
THETA	Greek letter with a line through its middle

RHO	Greek letter whose capital looks like a P
RHO	Greek letter that's a homophone of two English words
BEETS	Vegetables whose genus shares its name with a Greek letter
PSI	Greek letter spelled out at the start of a Beatles title?
ETA	Greek letter.
ETA	Greek letter
PSI	Greek letter.
EPSILON	Greek letter.

CHI	Greek letter
IONIANEPISTLE	Greek letter
UPSILON	Greek letter.
OMEGA	Greek letter
IOTA	Greek letter
DELTA	Greek letter
KAPPA	Greek letter
EPSILON	Greek letter

PHI	Greek letter
RHO	Greek letter.
LAMBDA	Greek letter
OMICRON	Greek letter.
GAMMA	Greek letter.