Answer: organa

AnswerCrossword Clue
ORGANAInstruments of knowledge
organainstrument of thought or knowledge
organaa. the doubling, or simultaneous singing, of a melody at an interval of either a fourth, a fifth, or an octave b. the second part in such singing
organasystem of rules or principles of demonstration or investigation
organaorganon
organaORGANON, a system of rules for scientific investigation, also ORGANUM
ORGANASurname of Princess Leia
ORGANALeia's adopted name
ORGANAPrincess Leia's surname
ORGANAPrincess Leia ... of "Star Wars"
ORGANALeia ..., "Star Wars" princess
ORGANATypes of vocal music
ORGANAPrincess Leia ...
ORGANAAids for acquiring lore
ORGANAPhilosophic principles.
ORGANAPhilosophic doctrines
ORGANADoctrinal methods in philosophy.
ORGANALeia .. ("Star Wars" princess)
ORGANAPrincess Leia ..
ORGANAPrincess Leia's last name
ORGANA"Star Wars" surname
ORGANALeia's last name
ORGANALeia ..: "Star Wars" princess
ORGANASets of principles