Cryptic crossword clue
Thought about hotel space – building grew rapidly 10

The most common and most likely answer to this crossword clue is the 10 letter word MUSHROOMED

I've seen this crossword clue in Financial Times
M
U
S
H
R
O
O
M
E
D


Buddy explains!

The straight part
We know that "grew rapidly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case grew rapidly = mushroomed.
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 MUSHROOMED mean?

MUSHROOMED verb
  1. To grow quickly to a large size.
  2. To gather mushrooms.
  3. To form the shape of a mushroom.

Latest crossword clues with full explanations