Arrival (6)
'arrival' is the definition.
(advent is a kind of arrival)
This is the entire clue.
(Other definitions for advent that I've seen before include "Season for a candle?" , "Church season" , "Arrival (with calendar?)" , "Forty days preceding Christmas" , "Run-up to Christmas" .)
'arrival' is the definition.
(I know that arrival can be written as coming)
This is all the clue.
(Other definitions for coming that I've seen before include "Advent" , "assured of future success" , "Approaching" , "Developing; arriving" , "On the way" .)