The most common and most likely answer to this crossword clue is the 7 letter word REVIVAL
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Buddy explains!
The straight part
We know that "evangelical meeting" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case evangelical meeting = revival.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 REVIVAL mean?
REVIVAL noun- The act of reviving, or the state of being revived
- Renewed attention to something, as to letters or literature.
- Renewed performance of, or interest in, something, such as drama or literature.
- Renewed interest in religion, after indifference and decline; a period of religious awakening; special religious interest.
- A Christian religious meeting held to inspire active members of a church body or to gain new converts.
- Reanimation from a state of languor or depression; applied to health, a person's spirits, etc.
- Renewed pursuit, or cultivation, or flourishing state of something, as of commerce, arts, agriculture.
- Renewed prevalence of something, as a practice or a fashion.
- Restoration of force, validity, or effect; renewal; reinstatement of a legal action.
- Revivification, as of a metal.