Enter a clue or pattern or both:
The Clue
Vault may finally collapse (4 letter answer)
The Answer
APSE
Tags
Notes
The answer APSE is very common and appears about once every 39 puzzles.
Related Clues
Chevet
Basilica area
Basilica feature
Basilica part
Building recess
Church alcove
Church area
Church feature
Church niche
Church nook
Church part
Church projection
Church section
Ecclesiastical setback?
Lateran area
Nave neighbor
Orbital point
Part of a basilica
Part of a church
Polygonal recess
Semicircular room
Temple part
It's behind the altar
It's usually vaulted
Niche at Notre Dame
Nook at Notre Dame
Projection for some kneelers
Recess at Notre Dame
Semicircular building extension
Site of a religious retreat
Vaulted area, perhaps
Vaulted church section
Area that may have stained glass
Definition
APSE as a noun:
1. (apse, apsis) = a domed or vaulted recess or projection on a building especially the east end of a church; usually contains the altar