eta or kappa

LETTER
List of words for the clue eta or kappa from the crossword:
IOTA BETA EST MESON TIME GREEK KEY GPA FRAT THETA PHI ZETA ARR TAU PEE JAMS ESTD EMT AITCH
WordClue
TAUkappa, vega
LINEtowing or actor's
MEATpork or veal
RATEof interest or fertility
SHIPclipper or passenger
SONGballad or lullaby
SOUPgazpacho or porridge
STARSun or Rigel
TIREradial or spare
WIREbarbed or chicken
AGENTinsurance or travel
BRANDAudi or Porsche
COURTappellate or supreme
DANCEtango or flamenco
FLUIDwater or petroleum
MOTORdiesel or stepping
ORDERfungus or stop-loss
PARTYRepublican or Conservative
POWERsolar or of will
RIVERNeva or Mekong
ALIENATIONestrangement
HAWKEEthan, actor