The most common and most likely answer to this crossword clue is the 7 letter word ERASURE
I've seen this crossword clue in Financial Times
E
R
A
S
U
R
E
More clues leading to the result ERASURE
- Cancellation period definite
- Long period of time certain to result in obliteration
- A part that’s rubbed out by age, of course
- Destruction is certain after a period
- Removal time guaranteed
- Removal firm on time
- Years marked as important by certain musical duo
- Time certain to produce destruction
- Cancellation of Times current in Britain
- Removal firm appears after time
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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 ERASURE mean?
ERASURE noun- The action of erasing; deletion; obliteration.
- The state of having been erased; total blankness.
- The place where something has been erased.
- A tendency to ignore or conceal an element of society.