Enter a clue or pattern or both:
The Clue
Like many an office aide (13 letter answer)
The Answer
INDISPENSABLE
Tags
Notes
The answer INDISPENSABLE is so rare that it appears less than once every 2500 puzzles.
Definition
INDISPENSABLE as an adjective:
1. not to be dispensed with; essential; "foods indispensable to good nutrition"
2. (essential, indispensable) = absolutely necessary; vitally necessary; "essential tools and materials"; "funds essential to the completion of the project"; "an indispensable worker"
3. unavoidable; "the routine but indispensable ceremonies of state"