The most common and most likely answer to this crossword clue is the 7 letter word WEIGHTY
W
E
I
G
H
T
Y
More clues leading to the result WEIGHTY
- Worrying number of days for famous wager? Under one week
- Substantial work at first needing a total of four scores
- Serious four score at shallow end
- Massive wife, four fifths of a ton
- Wife with some scores not easy to bear
- Serious question as husband leaves for piece of silver?
- Top for woman with figure of a voluminous nature
- Powerfully persuasive wife just into ninth decade
- Why I get confused is significant
- MassiveĀ grave
Buddy explains!

The straight part
We know that "of a voluminous nature" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case of a voluminous nature = weighty.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 WEIGHTY mean?
WEIGHTY adjective- Heavy.
- Important; serious; not trivial or petty.
- Rigorous; severe; afflictive.