Crossword Clue:

DIGAMMA a Greek letter

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

PHI	Greek letter on a key
OMEGA	Greek letter shaped like a horseshoe
TAKESITONTHECHI	Endures hardship atop a Greek letter?
PHI	Letter voiced by a Greek giant?
TAU	Greek letter shaped like a cross
ETA	Greek letter that's a symbol for viscosity
RHO	Greek letter that looks like a P
RHO	Greek letter that looks like a "P"

DELTA	Airline whose name is a Greek letter
PSI	Greek letter that looks like a pitchfork
WORNDOWNTOTHENU	Eroded as far as a Greek letter?
PSI	Greek letter that looks like a trident
PSI	Greek letter that begins with a silent letter
THETA	Greek letter with a line through its middle
RHO	Greek letter whose capital looks like a P
GNU	Animal whose name sounds like a Greek letter

PSI	Greek letter that sounds like a deep breath
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?
GAMMA	Greek letter.
OMEGA	Greek letter.
OMICRON	Greek letter
THETA	Greek letter.

BETA	Greek letter.
ALPHA	Greek letter.
KAPPA	Greek letter
LAMBDA	Greek letter.
PHI	Greek letter
RHO	Greek letter
BETA	Greek letter
TAU	Greek letter

ZETA	Greek letter
KAPPA	Greek letter.
PSI	Greek letter
DELTA	Greek letter.
ALPHA	Greek letter