Answer: FIR

AnswerCrossword Clue
FIRTree with lights, often
FIRCone bearer
FIRNeedle bearer
FIRPine family tree
FIRCertain evergreen
FIRChristmas tree
FIRSpruce cousin
FIRA train might circle one
FIRDouglas ..
FIRPlywood wood
FIRNeedle dropper
FIRNeedle producer
FIRFraser or Douglas
FIRNeedle holder
FIRChristmas tree choice
FIRCone dropper
FIRCedar kin
FIRChristmas buy
FIRChristmas choice
FIRTree often brought into the house
firfar-infrared radiation
FIREvergreen type
FIRCone maker
FIRDouglas, for one
FIRChristmas tree type
FIRCone producer
FIRDouglas, e.g.
FIRCone-bearing tree
FIRFlat-needled tree
FIRYuletide tree
FIRYuletide tree choice
FIRConiferous tree
FIREvergreen
FIRBalsam source
FIRChristmas-tree choice
FIRPopular Christmas tree
FIRCedar relative
FIRCertain needle dropper
FIRHoliday buy
FIRHoliday tree