Answer: saucers

AnswerCrossword Clue
SAUCERSUfologist's concern
saucerssmall shallow dish
saucersSAUCER, a small shallow dish
SAUCERSService components
SAUCERSThey're in the service
SAUCERSSmall shallow dishes
SAUCERSSci-fi ships
SAUCERSU.F.O. shapes, traditionally
SAUCERSBig eyes, metaphorically
SAUCERSSome U.F.O.'s
SAUCERSParts of a service
SAUCERSSpill catchers
SAUCERSSights in the sky?
SAUCERSDishes
SAUCERSCups' friends
SAUCERSAir-borne phenomena.
SAUCERSFlying objects.
SAUCERSFlying phenomena.
SAUCERSFlying enigmas.
SAUCERSCup holders
SAUCERSSome sightings