Cryptic crossword clue
Cover sheltering mass inside of aula, as much as chamber holds 7

The most common and most likely answer to this crossword clue is the 7 letter word ROOMFUL

I've seen this crossword clue in The Daily Telegraph
R
O
O
M
F
U
L

Buddy explains!

The straight part
We know that "as much as chamber holds" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case as much as chamber holds = roomful.
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 ROOMFUL mean?

ROOMFUL noun
  1. The amount that a room can hold, especially the number of people that can fit into a room.
  2. The people in a room, considered as a group.
ROOMFUL adjective
  1. Abounding with room or rooms; roomy.

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