The most common and most likely answer to this crossword clue is the 6 letter word EASTER
E
A
S
T
E
R
More clues leading to the result EASTER
- End of June, flower festival
- Time to celebrate son moving in usherette, or some such
- Endless oriental festival
- European flower festival
- Oriental flower festival
- Religious festival always involving a saint
- Great meal, but no starter at Queen’s commemorative event
- One banqueting, not the first, in celebratory season
- Maybe wind left Yankee exiting festival
- Preview clip with culprit finally sent down … this calls for a celebration
Buddy explains!

The straight part
We know that "Time to celebrate" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case time to celebrate = easter.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does EASTER mean?
EASTER adjective- Eastern.