The most common and most likely answer to this crossword clue is the 7 letter word NESTING
I've seen this crossword clue in The Daily Telegraph
N
E
S
T
I
N
G
More clues leading to the result NESTING
- Settling mostly new point in epigram
- Negative about eggs being recalled in avian activity
- Getting cosy in the Northeast’s smart
- Building a tree-house perhaps
- Sort of box for little gentlemen in trouble
- Building a tree-house?
- Sent wandering on local meadow, home-making for 1ac and 13dn
- At the corner, Rob making a cosy home
Buddy explains!
The straight part
We know that "Building a tree-house" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case building a tree-house = nesting.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 NESTING mean?
NESTING verb- (of animals) To build or settle into a nest.
- To settle into a home.
- To successively neatly fit inside another.
- To place in, or as if in, a nest.
- To place one thing neatly inside another, and both inside yet another (and so on).
- To hunt for birds' nests or their contents (usually "go nesting").
- The process by which a bird nests.
- The enclosure of one loop, block, etc. of code inside another.