The most common and most likely answer to this crossword clue is the 8 letter word BUDGETED
B
U
D
G
E
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D
Buddy explains!

The straight part
We know that "Secured means" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case secured means = budgeted.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 BUDGETED mean?
BUDGETED verb- To construct or draw up a budget.
- To provide funds, allow for in a budget.
- To plan for the use of in a budget.