The most common and most likely answer to this crossword clue is the 11 letter word CORNERSTONE
I've seen this crossword clue in The Daily Telegraph
C
O
R
N
E
R
S
T
O
N
E
More clues leading to the result CORNERSTONE
- Grain: formerly old Tyneside mainstay
- Basis of cereal a person formerly consumed
- Traps tenor in outermost part of building
- Gains control over temper — it’s very important
- Buttonholes must have colour basis
- Gets control of temper — it’s very important
- Set piece’s musical quality in foundational part
- Type of crop, formerly one thing of prime importance
- Strong supporter set pieces with style
Buddy explains!
The straight part
We know that "thing of prime importance" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case thing of prime importance = cornerstone.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 CORNERSTONE mean?
CORNERSTONE noun- A stone forming the base at the corner of a building.
- Such a stone used ceremonially, often inscribed with the architect's and owner's names, dates and other details.
- That which is prominent, fundamental, noteworthy, or central.