Answer:

COME

AnswerCrossword Clue
COMEArrive
COMECommand to a canine
COME..-hither (alluring)
COMEShow up
COMEApproach
COMEInstruction to Fido
COMEMake the scene
COMETag along
COME.. as you are
COME"Get over here, Fido!"
COME"Ready or not, here I ..!"
COMEAmount (to)
COMEAcquire, with "by"
COMESucceed, with "through"
COME".. Fly With Me": Sinatra standard
COMEPut in an appearance
COME"Grace us with your presence"
COME"O ... All Ye Faithful"
COME"Follow me"
COME... through (meet expectations)
COMEGo's opposite
COMEBlow in, so to speak
COMEMore of the lament
COMEObey a summons
COMEWord before across or down
COMEBeckoning word
COME"If you build it, they will ..."
COMEInvitation word
COMEObservation, part 6
COMEGo from there to here
COMEOrder to Rover
COME"... Together" (1969 chart-topper by the Beatles)
COMEDirection to all ye faithful
COMEGet here
COMEYou may do this as you are
COMECall for Fido
COMECommand for Fido
COME"O ... all ye faithful..."
COMECanine command
COMEAttend